PHS MoU Document

C-IF3.04-02-TS
Title: PHS-FWA (Personal Handy-phone System - Fixed Wireless Access) System :Interface Specification between FWA access Controller and Service Node Bellcore GR-303 Core interface-Version: 02
Date: June 7, 2000
PHS MoU Classification: Unrestricted
List of contents:<Summary>
1. General
2. Differences from Bellcore GR-303-CORE
3. Comment for Implementation
4. References
5. Item for Further Study<text>
1. Introduction
2. Definition of terms
3. Requirements and options for Customer service
4. Requirements supporting interfacing to the Digital Network
5. Operations system Interface *6. IDLC system capabilities : requirements and option
7. Requirements supporting craftperson interfacing to IDLC system *8. Requirements supporting IDLC administration *9. Requirements supporting system turn-up *10. Miscellaneous *11. IDLC systems transition considerations*
12. LDS-RDT Generic interface - requirements and options
13. Feature set C - SONET interface
Annex AThe clauses marked by * are not included in this specification.
Number of pages: 38

PHS MoU Group
c/o Association of Radio Industries and Businesses (ARIB)
14F, Nittochi Bldg., 4-1, Kasumigaseki 1-choume, Chiyoda-ku, Tokyo 100-0013, Japan
TEL +81-3-5510-8599 FAX +81-3-3592-1103© PHS MoU Group 2000

PHS MoU Document
C-IF3.04-02-TS
VersionHistory of Revised Versions
Date
Outline01

July 11, 1997

Established

02

June 7, 2000

Changed all WLL into FWA.

C-IF 3.04-02-TS
PHS-FWA(Personal Handy-Phone System-Fixed Wireless Access )System:
Interface Specification between FWA Access Controller and Service Node
-Bellcore GR-303-CORE Interface<SUMMARY>

1. General
This specification describes about Integrated Digital Loop Carrier system interface between WAC
and SN.
2. Differences from Bellcore GR-303-CORE
The differences from Bellcore GR-303-CORE are summarized in the following table.(Table S-1/CIF3.04)
The following specification have been added to Bellcore GR-303-CORE.
(1) SDH transmission specification between WAC and SN
The following service features have been deleted from Bellcore GR-303-CORE.
(1) Multi-party message telephone service(2) Digital data system(DDS) service(3) Non-locally/non switched service(4) ISDN Basic Rate and primary service(5) Digital bridging(6) Universal channel unit
(7) DS1 extensions
The following specifications have been deleted from Bellcore GR-303-CORE.
(1) Line Interface specifications(2) Hybrid signaling(3) Operation Interfaces (exclude line testing)(4) Craftsperson interface (clause 7)(5) Integrated digital loop carrier(IDLC) administration (clause 8)(6) System turn-up (clause 9)(7) Miscellaneous (clause 10)(8) IDLC system transition considerations (clause 11)
The terminologies like as “RDT” and “LDS” are replaced to “WAC” and “SN” respectively. “IDT” isconsidered to element of SN
3. Comments for implementation
It depends on operating company’s study to modify of these implementations according to latest
advanced technology, or to add some requirements according to national protocol.
This clause also shows example of sequence on GR-303-CORE interface (see Annex A).

C-IF3.04-02-TS (1)4. References
Bellcore Generic Requirement GR-303-CORE
5. Items for further study
It is under study to include items, which are not included in the minimum set specification at present
but specified in GR-303-CORE, in ISDN protocol specifications as many as possible in near future.

(2)

C-IF 3.04-02-TS

Table S-1/C-IF3.04 Differences from Bellcore GR-303-CORE(1/5)
Preface•Preface is not included•In physical layer SDH interface is included as optional
1.1 Purpose
specification.
•Functional equivalence of DS0 subscriber main frame access is
1.3.1 End to end system
not included.
requirements summary•Requirements to interface customer access lines are notincluded.
•ISDN Basic Rate and primary rate access is not included
1.3.2 Generic IDLC interface •SDH interface is included as optional specification.
•Operation related function and EOC are not included.
Requirements summary•ISDN is not included.
•Miscellaneous items are not included
1.3.3 Miscellaneous Items
1.4 Key Bellcore documents •Key Bellcore document is not included•Application of IDLC is not included
1.5 Application of IDLC
1.6 Differences from TR-303 •Differences from TR-303 is not included•Clause 7 to 11 are not included.
1.7 Organization of
document•Line interface function is not included and WCS interface
2.1.1 RDT
function is needed.
•Provisioning and maintenance is not included.
•INA is not included
2.1.4 INA
3.1 Summary of required and •Loop start, ground start and loop reverse battery circuit is not
optional service capabilities included.
•Non-locally/non-switched service is not included.
•Digital data services and ISDN BRA are not included.
•DS1 extension capability is not included.
•VF service is not included.
3.2 VF services•Circuit related description is not included.
3.3 Coin - Option•DDS capability is not included.
3.4 DDS capability•Non-locally/non-switched service is not included.
3.5 Non -locally/nonswitched service•ISDN capability is not included.
3.6 Requirements for the
ISDN capability•On hook transmission is only included and other specifications
3.7 Service related
are deleted.
requirements•SDH is included as optional specification.
4.1 Physical interface•ISDN capability is not included.
5 Operation system interface •Operation system interface is not included.
6 IDLC system capabilities •IDLC system capabilities are not included except concentration
function.
7 Requirements supporting •Requirements supporting craftsperson are not included.
craftsperson interfacing to
IDLC system

C-IF3.04-02-TS (3)Table S-1/C-IF3.04 Differences from Bellcore GR-303-CORE(2/5)
8 Requirements supporting •Requirements supporting IDLC administration are not included.
IDLC administration
9 Requirements supporting •Requirements supporting system turn-up are not included.
system turn-up•Miscellaneous are not included.
10 Miscellaneous
11 IDLC system transition •IDLC system transition considerations are not included.
considerations•FITL systems are not included.
12.1 Introduction•SDH is included as optional specification.
12.2 Executive summary•TMC and EOC are not included.
•ISDN Basic Access is not included.
•SDH method is added to the generic IDLC applications as
12.3 Application of theoption.
generic IDLC interface•Hybrid signaling is not included.
12.3.1 Selecting the number •Non-switched service is not included.
of DS1s•Hybrid signaling is not included.
12.3.2 Selecting the callprocessing signaling method•IDLC system/terminal operations are not included.
12.4.1 General•Loop testing is included but TSC and RTU are not included.
•Hybrid signaling is not included.
•IDLC system/terminal operations are not included.
12.4.2.2 IDLC
system/terminal operations•ABCD robbed bit signaling is not included.
12.4.2.3 Call processing•Loop testing is included but TSC and remote measuring unit are
12.4.2.5 Loop testing
not included.
•EOC is not included.
12.4.2.6 summary
12.4.3.5 LAPD requirements •EOC is not included.
for IDLC system•EOC is not included.
12.4.3.5.4 N201
•EOC logical data-link is not included.
12.4.3.5.11 SAPI/TEI
addressing conventions
12.4.3.6 Management entity •EOC is not included.
requirements•Hybrid signaling is not included.
12.5.1.1 Hybrid signaling•Hybrid signaling is not included.
12.5.2 Call processing
Messages•ABCD codes are not included.
12.5.2.1 ABCD cocds•Title is changed to CSC messages. In this section, TMC
12.5.2.2 TMC/ CSC
messages are not included.
messages•Multi-party circuit is not included.
12.5.2.2.1 SETUP•This message does not indicate that it has notified to12.5.2.2.3 ALERTING
WCS/WSU to start alerting .

(4)

C-IF 3.04-02-TS

Table S-1/C-IF3.04 Differences from Bellcore GR-303-CORE(3/5)•This message may not indicate that it has notified to WCS/WSU
12.5.2.2.4 CALL
to start terminating call proceeding.
PROCEEDING•ISDN Basic Access is not included.
12.5.2.2.5 CONNECT
message
12.5.2.2.9 INFORMATION •Reminder ring is not included.
•Multi-party functions are not included.
12.5.2.2.10 NOTIFY•This message is not included.
12.5.2.2.13 CONNECT
ACKNOWLEDGE•Thi section title is changed to CSC information elements.
12.5.2.3 TMC and CSC•In this section, these information elements shall be changed
information elements
according to the network.
•In this section, TMC messages are not included.
•RDT physical termination ports are not included.
12.5.2.3.2 Call reference•FITL system is not included in this specification.
•Value 27 may be used by WAC to notice permanent signal.
12.5.2.3.5 Cause•OS is not included.
•Value 35 may be used when radio channel not established.
•Some information elements are deleted.
12.5.2.3.8 Notification
indicator•Reminder ring, -T ringing, +R ringing and +T ringing of signal
12.5.2.3.10 Signal
value are not included.
•Time-slot management channel scenarios are not included.
12.5.3 Time-slot
management channel
scenarios•Loop/ ground start circuit are replaced to single party and loop
12.5.4.1 Generalreverse battery circuit is replaced to single party (Direct DiallingIn).
•In this section, Customer interface is replaced to customer side
equipment interface.
•In this section, TMC messages are not included.
•Multi-party, ISDN Basic Access and DDS circuits are notincluded.
•Transmission path requirements are not included.
12.5.4.2 Loop start circuits •Section title is changed to Single party.
•Ring pretrip test may be performed by WSU.
12.5.4.2.1 Establishment
initiated by the IDT•This title is changed to Establishment initiated by the TE.
12.5.4.2.2 Establishment
initiated by the CPE
12.5.4.2.3 Clearing initiated •The RELEASE message sent by the WAC may contain one oftwo cause values.(16/27)
by the IDT
12.5.4.3 Ground start circuits •This section is consolidated to “12.5.4.2 Single party” section.
12.5.4.4 Loop reverse battery •Section title is changed to Single party (Direct Dialling In).
circuitC-IF3.04-02-TS (5)Table S-1/C-IF3.04 Differences from Bellcore GR-303-CORE(4/5)•CALL PROCEEDING message and NOTIFY message shall be
12.5.4.4.1 Establishment
sent autonomously.
12.5.4.6 Multi party - option •Multi - party service is not included.
12.5.4.7 ISDN Basic Access •ISDN is not included.
Circuits - Option•DDS is not included .
12.5.4.8 DDS circuits option
12.5.5 Detailed TMC/CSC •In this section, TMC is not included .
•In this section, Customer interface is not included .
messages•Connect request state is not included .
•Counting registers are not included .
12.5.5.1.1 IDT(Null - 0)•Reminder ring service is not included .
•Reminder ring service is not included.
12.5.5.1.2 RDT(Null - 0)
12.5.5.2.1 IDT(call initiated - •Counting registers are not included.
1)
12.5.5.4.1 IDT(call present - •R12-324 applies to Single party.
•R12-325 applies to Single party(DDI).
6)•ISDN Basic Access is not included.
12.5.5.4.2 RDT(call present - •R12-329 applies to Single party.
•R12-334 applies to Single party(DDI).
6)
12.5.5.5.1 IDT(call received- •NOTIFY message may be sent autonomously.
7)•NOTIFY message may be sent autonomously.
12.5.5.5.2 RDT(callreceived-7)•NOTIFY message may be sent autonomously.
12.5.5.6.1 IDT(callproceeding -9)•NOTIFY message may be sent autonomously.
12.5.5.6.2 RDT(callproceeding -9)•Multi-party circuit is not included.
12.5.5.8.1 IDT(disconnect
request - 11)
12.5.5.8.2 RDT(disconnect •Multi-party circuit is not included.
request - 11)
12.5.5.9.2 RDT(disconnect •If customer is still off-hook but air channel has been
disconnected, RELEASE message will be send from WAC to SN
indication - 12)with cause value 27.
•Tip party test is not included.
12.5.5.13 Tip party testoption
12.5.5.17 TMC/CSC timers •This title is changed to CSC timers.
•At the IDT, the value of T305 may be extended according to air
12.5.5.17.2 T305
channel timer.
•T398 is not included.
12.5.5.17.6 T398
•T313 is not included.
12.5.5.17.8 T313
12.5.5.18 Connect request - 8 •Connect request is not included.

(6)

C-IF 3.04-02-TS

Table S-1/C-IF3.04 Differences from Bellcore GR-303-CORE(5/5)•This section is not included.
12.5.5.19 Blocked
Originating Call Procedures I•This section is not included.
12.5.5.19 Blocked
Originating Call Procedures II
12.5.6 Provisioning Scenarios •Provisioning scenarios are not included.
12.5.7 ISDN Basic Access - •ISDN is not included.
option12.5.8 Transmission - voice •Transmission requirements are not included.
•Signalling and supervision are not included.
12.5.9 Signalling andsupervision•CRV may be designed by operator.
12.5.10 Multi-IG Feature•TMC and EOC is not included.
•ISDN Line termination is not included.
•Option “16” and robbed-bit signalling is not included.
12.6.1.2 Physical layer•ISDN related description is not included.
requirements•ABCD robbed-bit signalling is not included.
12.6.1.3 Data-link layer•Hybrid signalling is not included.
requirements•EOC is not included.
12.6.1.3.1 ABCD robbed-bit •ABCD robbed-bit signalling is not included.
signalling12.6.1.3.2 Call processing DL •TMC and EOC is not included.
control•Operations DL control is not included.
12.6.1.3.3 Operations DL
control•Convergence function is not included.
12.6.1.4 Convergence
function•Application layer is not included.
12.6.1.5 Application layer
12.6.3 EOC and TMC/CSC •EOC and TMC path protection switching is not included.
path protection switching
12.7 Operations requirements •Operation requirements across the generic IDLC interface is
not included .
across the generic IDLC
interface•Requirements and options supporting system turn-up is not
12.8 Requirements andinclude in this specification.
options supporting system
turn-up•UDLC to IDLC transition considerations is not included.
12.9 UDLC to IDLC
transition considerations

C-IF3.04-02-TS (7)C-IF 3.04-02-TS
WAC-Service Network Interface Specifications-Bellcore GR-303-CORE Interface-Minimum Set SpecificationCONTENTS
Page
1. Introduction ........................................................................................................................ 1
1.1 Purpose ........................................................................................................................... 1
1.2 Scope and Assumptions.................................................................................................. 1
1.3 A summary of Systems and Generic IDLC Interface Requirements.............................. 1
1.3.1 End to End System requirements summary............................................................... 1
1.3.2 Generic IDLC interface requirements summary........................................................ 1
1.3.3 Miscellaneous items * .............................................................................................. 1
1.4 Key to Bellcore documents related to this GR * ........................................................... 1
1.5 Applications of IDLC systems * .................................................................................... 1
1.6 Differences from TR-NWT-000303, Issue 2 *............................................................... 1
1.7 Organization of document .............................................................................................. 1
1.8 Requirements terminology ............................................................................................. 1
1.9 Requirement labeling conventions ................................................................................. 1
2. Definition of terms .............................................................................................................
2.1 Network architecture and definitions .............................................................................
2.1.1 Wireless Access Controller (WAC) ..........................................................................
2.1.2 Digital Transmission Facility(DTF) ..........................................................................
2.1.3 Integrated Digital Terminal(IDT)..............................................................................
2.1.4 Integrated Network Access(INA) * ...........................................................................

1
1
2
2
2
2

3. Requirements and options for Customer services .............................................................. 2
3.1 Summary of required and optional service capabilities ................................................. 2
3.2 VF services * .................................................................................................................. 2
3.3 Coin - option................................................................................................................... 3
3.3.1 General ...................................................................................................................... 3
3.3.2 Requirements ............................................................................................................. 3
3.4 Digital Data System (DDS) capability - option *........................................................... 3
3.5 Non-locally/Nonswitched service - option * .................................................................. 3
3.6 Requirements for the ISDN capability - option *........................................................... 3
3.7 Service related requirements ......................................................................................... 3
3.7.1 Digital Bridging *...................................................................................................... 3
3.7.2 Universal Channel Units - Options *......................................................................... 3
3.7.3 On-Hook Transmission Capability............................................................................ 3
3.7.4 Requirements for DS1 Extensions - Option * ........................................................... 3
4. Requirements supporting interfacing to the Digital Network ............................................ 3
5. Operations system Interface * ............................................................................................ 3

C-IF 3.04-02-TSi

6. IDLC system capabilities: requirements and option ..........................................................
6.1 System Requirements * ...................................................................................................
6.2 System Options *.............................................................................................................
6.2.1 Facility Protection Switching - Option *....................................................................
6.2.2 Concentration .............................................................................................................
6.2.3 Remote Test Unit *.....................................................................................................
6.2.4 Automatic Line Insulation Tests (ALITs) * ...............................................................
6.2.5 Software Downloading - Options * ............................................................................

3
3
3
3
4
4
4
4

7. Requirements supporting craftperson interfacing to IDLC system * ................................. 4
8. Requirements supporting IDLC administration * .............................................................. 4
9. Requirements supporting system turn-up * ........................................................................ 4
10. Miscellaneous * ................................................................................................................ 4
11. IDLC systems transition considerations *........................................................................ 4
12.LDS-RDT Generic interface - requirements and options................................................... 4
12.1 Introduction .................................................................................................................. 4
12.2 Generic IDLC interface requirements - executive summary........................................ 4
12.3 Applications of generic IDLC interface ....................................................................... 4
12.4 Interface functionality .................................................................................................. 5
12.4.1 General .................................................................................................................... 5
12.4.2 Generic Implementation of Interface Functions...................................................... 5
12.4.2.1 DS1 Facility Operations ................................................................................... 5
12.4.2.2 IDLC System/Terminal Operations.................................................................. 5
12.4.2.3 Call Processing ................................................................................................. 5
12.4.2.4 Information Transport ...................................................................................... 5
12.4.2.5 Loop Testing *.................................................................................................. 5
12.4.2.6 Summary........................................................................................................... 5
12.4.3 LAPD protocol ........................................................................................................ 5
12.5 Requirements and options supporting customer services............................................. 6
12.5.1 Call Processing technique........................................................................................ 6
12.5.1.1 Hybrid signaling * ............................................................................................ 6
12.5.1.2 Out-of-band signaling....................................................................................... 6
12.5.2 Call processing messages ......................................................................................... 6
12.5.2.1 ABCD codes * .................................................................................................. 6
12.5.2.2 CSC messages................................................................................................... 6
12.5.2.3 CSC information elements................................................................................ 8
12.5.3 Time-slot management channel scenarios *............................................................ 1012.5.4 Common signaling channel scenarios ..................................................................... 1012.5.4.1 General ............................................................................................................. 1012.5.4.2 single party ....................................................................................................... 1012.5.4.3 Ground start circuits * ...................................................................................... 1112.5.4.4 single party (Direct Dialling In) ....................................................................... 1212.5.4.5 Coin - option..................................................................................................... 13ii

C-IF 3.04-02-TS

12.5.4.6 Multiparty - option * ........................................................................................ 13
12.5.4.7 ISDN basic access circuits - option * ............................................................... 13
12.5.4.8 Digital Data System (DDS) circuits - option *................................................. 13
12.5.4.9 On hook transmission ....................................................................................... 13
12.5.5 Detailed CSC procedures ........................................................................................ 13
12.5.5.1 Null - 0.............................................................................................................. 13
12.5.5.2 Call initiated - 1................................................................................................ 14
12.5.5.3 Overlap sending - 2........................................................................................... 14
12.5.5.4 Call present - 6.................................................................................................. 14
12.5.5.5 Call received - 7................................................................................................ 15
12.5.5.6 Call proceeding - 9 ........................................................................................... 16
12.5.5.7 Active - 10 ........................................................................................................ 16
12.5.5.8 Disconnect request - 11 .................................................................................... 1712.5.5.9 Disconnect indication - 12................................................................................ 1712.5.5.10 Release Request - 19....................................................................................... 1712.5.5.11 Call clearing.................................................................................................... 1712.5.5.12 Coin - option................................................................................................... 18
12.5.5.13 Tip party test - option * .................................................................................. 18
12.5.5.14 Permanent signal procedures .......................................................................... 18
12.5.5.15 Call state mismatch procedures ...................................................................... 18
12.5.5.16 Error handling procedures .............................................................................. 18
12.5.5.17 CSC timers....................................................................................................... 19
12.5.5.18 Connect request - 8 * ...................................................................................... 19
12.5.5.19 Brocked originating call procedures 1 *......................................................... 20
12.5.5.20 Brocked originating call procedures 2 *......................................................... 20
12.5.6 Provisioning scenarios *.......................................................................................... 20
12.5.7 ISDN basic access - option *................................................................................... 20
12.5.8 Transmission - Voice *............................................................................................ 20
12.5.9 Signalling and supervision * ................................................................................... 20
12.5.10 Multiple Interface group (Multi-IG frame) feature ............................................... 20
12.6 Requirements and options supporting interfacing to digital network .......................... 20
12.6.1 Interface requirements ............................................................................................. 20
12.6.1.1 Additional DTF - interface requirements ......................................................... 20
12.6.1.2 Physical layer requirements.............................................................................. 20
12.6.1.3 Data link layer requirements ............................................................................ 21
12.6.1.4 Conversion function * ...................................................................................... 21
12.6.1.5 Application layer * ........................................................................................... 21
12.6.2 DS1 facility protection switch - option ................................................................... 21
12.6.3 EOC and TMC/CSC path protection switching ...................................................... 21
12.7 Operations requirements across the generic IDLC interface *..................................... 21
12.8 Requirements and options supporting system turn-up * .............................................. 21
12.9 UDLC to IDLC transition considerations *.................................................................. 21
13 Feature set C - SONET interface....................................................................................... 21
Annex A - Examples of PSTN sequence on GR-303-CORE interface ................................... 22*:This mark indicates sections which are specified in GR-303-CORE but are not included in this
PHS-FWA MoU specification.

C-IF 3.04-02-TS

iii

1. Introduction
1.1 Purpose
This section is specified in section 1.1 of GR-303-CORE. And these specifications include SDHtransmission as the physical layer.
1.2 Scope and Assumptions
This section is specified in section 1.2 of GR-303-CORE.
1.3 A Summary of System and Generic IDLC Interface Requirements
1.3.1 End-to-End System Requirements Summary
An IDLC system must be able to interface to other digital transmission systems in CO. This
specification includes requirements and options on signal frame formats, signalling, performance.
1.3.2 Generic IDLC Interface Requirements Summary
This section is specified in section 1.3.2 of GR-303-CORE. And SDH transmission is another option
for physical layer. Operation related specifications are not specified in PHS-FWA documents. Also A
16-state robbed-bit signalling is not specified in PHS-FWA documents. ISDN also is not included.
1.3.3 Miscellaneous Items *1.4 Key to Bellcore documents related to this GR *1.5 Applications of IDLC systems *1.6 Differences from TR-NWT-000303, Issue 2 *1.7 Organization of document
This section is specified in section 1.3.2 of GR-303-CORE. But section 7-11 and appendix A are
deleted.
1.8 Requirements terminology
This section is specified in section 1.8 of GR-303-CORE.
1.9 Requirement labeling conventions
This section is specified in section 1.9 of GR-303-CORE.
2. Definition of Terms
2.1 Network Architecture and Definitions.

C-IF3.04-02-TS

1

Figure 2-1 of GR-303-CORE illustrates a generic IDLC system network architecture for IDLC system
and Operation interface and Line Termination Equipment are deleted.
2.1.1 FWA Access Controller (WAC)
The WAC is an intelligent network element that interfaces between FWA Cell Station (WCS) andDS1 rate facilities. Functional block diagram of WAC is operator dependent. The RDT may befunctionally divided into three parts : WCS interface functions, common system functions, and Digital
Transmission Facility (DTF) Interface functions. Common system functions include signallinginsertion and extraction, multiplexing and demultiplexing, concentration, time-slot interchange,
channel tests, and frame alignment.
In addition, transmission facility interface functions as described in the next section may be includedin the WAC.
WCS functions are not specified and WCS is described as “customer side equipment” in thisdocument.
2.1.2 Digital Transmission Facility (DTF) Interface
This section is specified in section 2.1.2 of GR-303-CORE.
2.1.3 Integrated Digital Terminal (IDT)This section is specified in section 2.1.3 of GR-303-CORE.
2.1.4 Integrated Network Access *3 Requirements and Options for Customer Services
3.1 Summary of Required and Optional Service Capabilities
This section is specified in section 2.1.3 of GR-303-CORE.
Although circuit type (e.g. loop-start, ground-start and loop-reverse-battery) are described in GR-303CORE, this document does not include circuit type because circuit type should be defined in FWA
Subscriber Unit (WSU) in PHS-FWA document. “Single party” is used to represent loop-start, groundstart circuit, and, “Single party (Direct Dialling In)” is used to represent loop-reverse-battery circuit.
Non-locally/non-switched service, Digital Data service, DS1 extension capability and ISDN BRA
capability which are specified as option are not supported in PHS-FWA system.
That single party service category, for example emergency call, calling number delivery, aredescribed in C-SV0.00/1.00 of PHS-FWA document.
3.2 VF Services *2

C-IF 3.04-02-TS

3.3 Coin - option
This section is specified in section 3.3 of GR-303-CORE.
Circuit type shall not be described in this specification.
This documents describe coin telephone function according to Bellcore standard. But these coin
telephone functions are one example and these functions shall be changed according to national
standard.
3.4 Digital Data System (DDS) Capability - option *3.5 Non-locally/Non-switched Services - option *3.6 Requirements for the ISDN Capability - option *3.7 Service Related Requirements *3.7.1 Digital Bridging *3.7.2 Universal Channel Units - Options *3.7.3 On-hook Transmission Capability
This section is specified in section 3.7.3 of GR-303-CORE.
3.7.4 Requirements for DS1 Extensions - Option *4. Requirements Supporting Interfacing to the Digital Network
This section is specified in section 4 of GR-303-CORE.
These specifications are described according to DS1 rate physical interface. As optional transmission
capability SDH transmission capability is added to this specification. Signal is transported according
to STM-1(Synchronous Transport Module -1) and interface speed is 155.52Mb/s. Detailspecifications are standardized in ITU-T.
In section 4.4.10, “ISDN capability” is not required.
5. Operation System Interfaces *6. IDLC System Capabilities : Requirements and Options
6.1 System Requirements *6.2 System Options *6.2.1 Facility Protection Switching - Option *C-IF3.04-02-TS3

6.2.2 Concentration
This section is specified in section 6.2.2 of GR-303-CORE.
6.2.3 Remote Test Unit *6.2.4 Automatic Line Insulation Tests (ALITs) *6.2.5 Software Downloading - Options *7. Requirements Supporting Craftperson Interfacing to IDLC systems *8. Requirements Supporting IDLC Administration *9. Requirements Supporting System Turn-Up *10. Miscellaneous *11. IDLC System Transition Considerations *12. LDS-RDT Generic Interface - Requirements and Options
12.1 Introduction
This section is specified in section 12.1 of GR-303-CORE and FITL system is deleted.
12.2 Generic IDLC Interface Requirements - Executive Summary
This section is specified in section 12.2 of GR-303-CORE.
The physical layer of this specification have SDH transmission capability as optional function.
Hybrid signaling which is one of call proceeding technique is not used, and Common Signaling
Channel (CSC) is used for making time-slot assignments and for call supervision.
Embedded Operation Channel (EOC) is not included.
ISDN Basic Access is not included.
12.3 Applications of the Generic IDLC Interface
This section is specified in section 12.3 of GR-303-CORE.
When DS1 is used as physical layer, the Selecting number of DS1 is more simplified because of notsupporting of non-switched service.
“12.3.2 Selecting the Call Processing Method” is deleted because hybrid signaling is not supported in

4

C-IF 3.04-02-TS

PHS-FWA.
12.4 Interface Functionality
12.4.1 General
This section is specified in section 12.4.1 of GR-303-CORE.
Loop testing function is not included.
In call processing only out-of-band signaling is supported.
12.4.2 Generic Implementation of Interface Function
12.4.2.1 DS1 Facility Operations
This section is specified in section 12.4.2.1 of GR-303-CORE.
12.4.2.2 IDLC System/Terminal Operations *12.4.2.3 Call Processing
This section is specified in section 12.4.2.3 of GR-303-CORE.
Call processing is accommodated by only out-of-band signaling and used for all signaling anddynamic time-slot management needs. The use of the CSC allows all DS0s to be transported as clearchannel DS0s between the WAC and SN.
The SN and WAC shall support out-of-band signaling using the CSC.
12.4.2.4 Information TransportThis section is specified in section 12.4.2.4 of GR-303-CORE.
12.4.2.5 Loop Testing *12.4.2.6 Summary
This section is specified in section 12.4.2.6 of GR-303-CORE leaving out operation data link (EOC).
12.4.3 LAPD protocol
This section is specified in section 12.4.3 of GR-303-CORE leaving out operation data link (EOC).
When LAPD protocol data link is established SAPI/TEI is mapped for CSC logical data-link and EOC
logical data-link. Following SAPI/TEI combinations are deleted from this specification.
a. SAPI=1 and TEI=0 of the EOC is not included.
b.SAPI=1 and TEI=4 of the EOC is not included.

C-IF3.04-02-TS

5

c.SAPI=1 and TEI=1 of the EOC is not included.
d.SAPI=1 and TEI=2 of the EOC is not included.
e.SAPI=1 and TEI=3 of the EOC is not included.
f.SAPI=1 and TEI=5 of the EOC is not included.
12.5 Requirements and Options Supporting Customer Services
12.5.1 Call Processing Techniques
12.5.1.1 Hybrid Signaling *12.5.1.2 Out-of-Band Signaling
This section is specified in section 12.5.1.2 of GR-303-CORE.
12.5.2 Call Processing Messages
This section is specified in section 12.5.2 of GR-303-CORE leaving out ABCD codes needed forhybrid signaling.
12.5.2.1 ABCD codes *12.5.2.2 CSC messages
This section is specified in section 12.5.2.2 of GR-303-CORE. Because TMC messages are not used,
CONNECT ACKNOWLEDGE is not included in this specification.
12.5.2.2.1 SETUP messages
This section is specified in section 12.5.2.2.1 of GR-303-CORE leaving out TMC related
requirements.
Multi-party circuits specifications are not included.
12.5.2.2.2 SETUP ACKNOWLEDGE Message
This section is specified in section 12.5.2.2.2 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.2.3 ALERTING message
This section is specified in section 12.5.2.2.3 of GR-303-CORE leaving out TMC related
requirements.
WAC may not notify to IDT that connection between WAC and WCS/WSU has been established andbegan alerting.
12.5.2.2.4 CALL PROCEEDING message
This section is specified in section 12.5.2.2.4 of GR-303-CORE leaving out TMC related

6

C-IF 3.04-02-TS

requirements.
WAC may not notify to IDT that connection between WAC and WCS/WSU has been established andbegan call proceeding.
12.5.2.2.5 CONNECT message
This section is specified in section 12.5.2.2.5 of GR-303-CORE leaving out TMC related
requirements.
ISDN Basic Access is not included.
12.5.2.2.6 DISCONNECT message
This section is specified in section 12.5.2.2.6 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.2.7 RELEASE message
This section is specified in section 12.5.2.2.7 of GR-303-CORE leaving out TMC related
requirements.
The WAC sends a RELEASE message in response to a DISCONNECT message to signal that theconnection between WAC and customer has been released successfully. The WAC also sends a
RELEASE message in response to DISCONNECT message to signal that the customer has enteredpermanent signal state because of long unavailable off-hook.
12.5.2.2.8 RELEASE COMPLETE message
This section is specified in section 12.5.2.2.8 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.2.9 INFORMATION message
This section is specified in section 12.5.2.2.9 of GR-303-CORE leaving out TMC related
requirements.
Reminder ring is not included in CR12-143.
12.5.2.2.10 NOTIFY message
This section is specified in section 12.5.2.2.10 of GR-303-CORE leaving out TMC related
requirements.
Multi party service is not included.
“Loop/ground start circuit” is replaced to “single party” and “loop reverse battery circuit” is replaced
to “single party (Direct Dialling In)”.
12.5.2.2.11 STATUS ENQUIRY message
This section is specified in section 12.5.2.2.11 of GR-303-CORE leaving out TMC related

C-IF3.04-02-TS

7requirements.
12.5.2.2.12 STATUS message
This section is specified in section 12.5.2.2.12 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.2.13 CONNECT ACKNOWLEDGE message *12.5.2.3 CSC Information Elements
This section is specified in section 12.5.2.3 of GR-303-CORE.
These information elements and element encode patterns are one example and these shall be changed
according to national standard.
12.5.2.3.1 Protocol Discriminator
This section is specified in section 12.5.2.3.1 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.3.2 Call ReferenceThis section is specified in section 12.5.2.3.2 of GR-303-CORE leaving out TMC related
requirements and FITL system related requirements.
In R12-155, Call Reference Value is used as customer side equipment logical number in PHS-FWA
system and WAC may support a provisionable association between customer side equipment logicalnumber and CRVs at the WAC.
In R12-156, figure of call reference value may be modified by national operator.
12.5.2.3.3 Message Type
This section is specified in section 12.5.2.3.3 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.3.4 Bearer Capability
This section is specified in section 12.5.2.3.4 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.3.5 Cause
This section is specified in section 12.5.2.3.5 of GR-303-CORE leaving out TMC related
requirements.

8

C-IF 3.04-02-TS

Cause 27 is replaced as follows.
The WAC may use this cause value in RELEASE message to indicate that call clearing which is
response to DISCONNECT message from IDT was failed because of long unavailable off-hook after
the communication finished. In this case, the customer has entered permanent signal state. After
receiving a message with this cause value, the WAC shall clear the time slot and continue to monitor
the line. The WAC will report the return to on-hook status in an INFORMATION message as
described in section 12.5.5. IDT may use this cause value in some cases.
In cause 34 OS is not included.
Cause 35 may also used to indicate that no available air channels between WCS and WSU exists forcall establishment.
12.5.2.3.6 Call State
This section is specified in section 12.5.2.3.6 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.3.7 Channel Identification
This section is specified in section 12.5.2.3.7 of GR-303-CORE leaving out TMC related
requirements.
If SDH transmission is used between WAC and SN, Channel identification may be different from thisspecification.
12.5.2.3.8 Notification Indicator
This section is specified in section 12.5.2.3.8 of GR-303-CORE leaving out TMC related
requirements. In table 12-9 connect / disconnect dial pulse detector, tip party test / ground and no tip
party ground is not included.
12.5.2.3.9 Keypad Facility
This section is specified in section 12.5.2.3.9 of GR-303-CORE leaving out TMC related
requirements.
12.5.2.3.10 Signal
The Signal element shall be formatted as 12.5.2.3.10 of GR-303-CORE.
The IDT uses the signal element to specify an alerting pattern for the WSU to apply to customer.
The IDT shall encode signal value based on Table 12-11 bis. instead of table 12-11 of GR-303-CORE.

C-IF3.04-02-TS

9

Table 12-11 bis. : Signal Value Coding
Signal Value-R Ringing
Pattern A
Pattern B
Pattern C
Pattern D
Pattern E
Pattern F
Pattern G
Alerting Off

Coding8 7 6 5 4 3 2 1
0 1 0 0 0 0 0 0
0 1 0 0 0 0 1 0
0 1 0 0 0 0 1 1
0 1 0 0 0 1 0 0
0 1 0 0 0 1 0 1
0 1 0 0 0 1 1 0
0 1 0 0 0 1 1 1
0 1 0 0 1 0 1 1
0 1 0 0 1 1 1 1

Reference
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
TR-NWT-000057
No Reference

12.5.2.3.11 Switchhook
This section is specified in section 12.5.2.3.11 of GR-303-CORE leaving out TMC related
requirements.
12.5.3 Time-Slot Management Channel Scenarios *12.5.4 Common Signalling Channel Scenarios
12.5.4.1 General
This section is specified in section 12.5.4.1 of GR-303-CORE.
The performance monitoring in R12-195 and transmission path requirements in R12-196 are notincluded.
Title “Loop/ground start circuit” is replaced to “single party” and “loop reverse battery circuit” isreplaced to “single party (Direct Dialling In)”.
ISDN Basic Access, DDS circuits and multiparty are not supported.
12.5.4.2 Single party
12.5.4.2.1 Established Initiated by the IDTThis section is specified in section 12.5.4.2.1 of GR-303-CORE.
Ring pretrip test is performed in WSU and is not included.
R12-199 is replaced as follows.
Once the WAC determines that it can complete the call, it shall notice to customer side equipmentthat terminating call has accepted, and it shall send an ALERTING message.

10

C-IF 3.04-02-TS

R12-201 is replaced as follows.
If the cusotmer subscribes to calling number delivery, the SN will forward the calling number to
WAC with on hook transmission and WAC will forward it to customer side equipment.
R12-202 is replaced as follows.
When WAC was noticed from customer side equipment that customer has turned off hook, it shallsend a CONNECT message to SN.
12.5.4.2.2 Established Initiated by the TE
This section is specified in section 12.5.4.2.2 of GR-303-CORE
R12-203 is replaced as follows.
When the WAC receives signal of detecting off-hook of TE, it shall send a SETUP message to tell the
IDT that a customer is requesting service.
R12-206 is replaced as follows.
When WAC receives addressing information from customer side equipment, the WAC shall forward
to IDT, digit by digit in INFORMATION message or Dual Tone Multifrequency (DTMF) signals.
O12-208 is replaced as follows.
The SN may request, via a NOTIFY message, that call is a toll call.
12.5.4.2.3 Clearing Initiated by the IDTThis section is specified in section 12.5.4.2.3 of GR-303-CORE.
R12-210 is replaced as follows.
In response, the WAC shall forward disconnect toward the customer side equipment.
R12-211 is replaced as follows.
When the WAC received signal indicating on hook of customer from the customer side equipment, it
shall disconnect the line unit from the DS0 and send RELEASE message.
In R12-213, the RELEASE message sent by WAC also shall contain one of two cause values
12.5.4.2.4 Clearing Initiated by the TE
R12-214 is replaced as follows.
When the WAC received signal indicating on hook of customer from the customer side equipment, it
shall send a DISCONNECT message to IDT.
In R12-218, circuit related description shall be deleted (e.g. the hit - protection/ flash/ disconnect
timing requirements shall be deleted) .
R12-219 depends on national protocol.
12.5.4.3 Ground Start Circuits *C-IF3.04-02-TS

11

12.5.4.4 Single Party (Direct Dialling In)
Three control protocol is not included (wink start/ immediate dial/ delay dial).
12.5.4.4.1 Establishment
This section is specified in 12.5.4.4.1 of GR-303-CORE.
R12-247 is replaced as follows.
Once the WAC determines that it can complete the call, it shall send CALL PROCEEDING message
to IDT autonomously.
R12-248 is replaced as follows.
After R12-247, the WAC shall transmit NOTIFY message autonomously.
R12-249 and R12-250 are replaced as follows.
The IDT shall send all digits to WAC in a single INFORMATION message, or with DTMF orMultifrequency (MF) signaling, and WAC will forward the destination number to customer side
equipment.
R12-251 is replaced as follows.
When the WAC receives signal that indicate an off-hook signal from customer side equipment, it shallsend a CONNECT message.
12.5.4.4.2 Clearing Initiated by the IDTThis section is specified in section 12.5.4.2.3.
12.5.4.4.3 Clearing Initiated by the WAC
This section is specified in section 12.5.4.2.4.
12.5.4.4.4 Clearing Initiated by the TE during a Basic E-911 Call
This section is specified in section 12.5.4.4.4 of GR-303-CORE.
R12-261 is replaced as follows.
When the WAC receives signal indicating on hook of customer from customer side equipment, it shallsend a DISCONNECT message to IDT.
R12-263 is replaced as follows.
When the WAC receives signal indicating off hook of customer from customer side equipment, it
shall send a INFORMATION message to IDT.
12.5.4.4.5 Clearing Initiated by the TE during an Expanded E-911 call - Option
This section is specified in section 12.5.4.4.5 of GR-303-CORE.

12

C-IF 3.04-02-TS

R12-265 is replaced as follows.
When the WAC receives signal indicating on hook of customer from customer side equipment, it shallsend a DISCONNECT message to IDT.
In R12-267, the IDT can send an INFORMATION message to the WAC to notice ringback to
customer side equipment.
In R12-269, WAC will notice to stop ringback or resend ringback to customer side equipment.
R12-271 is replaced as follows.
When the WAC detects the customer turn off-hook from customer side equipment, the WAC shallsend a CONNECT message to the IDT to re-establish the call.
12.5.4.5 Coin - Option
This section describe one example of coin service (or pay phone service) according to Bellcore
documents. The IDT and WAC exchange NOTIFY message over CSC to perform coin specificfunctions. See section 12.5.5 for further details.
12.5.4.6 Multi-Party - Option *12.5.4.7 ISDN Basic Access Circuits - Option *12.5.4.8 Digital Data System (DDS) Circuits - Option *12.5.4.9 On-Hook Transmission
This section is specified in section 12.5.4.9 of GR-303-CORE.
12.5.5 Detailed CSC ProceduresThis section is specified in section 12.5.5 of GR-303-CORE leaving out TMC related requirements.
Because TMC messages are not used, Connect Request state is not included in this specification.
12.5.1.1 Null - 0
12.5.5.1.1 IDT (Null - 0)
This section is specified in section 12.5.5.1.1 of GR-303-CORE leaving out TMC descriptions.
In R12-289, counting register shall be deleted.
R12-291 shall be deleted.
12.5.5.1.2 WAC (Null - 0)
This section is specified in section 12.5.5.1.2 of GR-303-CORE leaving out TMC descriptions.

C-IF3.04-02-TS

13

In R12-293, detecting seizure signal or off-hook of line is not used and signal that indicate that
customer has off-hook is received from customer side equipment.
In R12-296 shall be deleted.
12.5.5.2 Call Initiated - 1
12.5.5.2.1 IDT (Call Initiated - 1)
This section is specified in section 12.5.5.2.1 of GR-303-CORE leaving out TMC descriptions.
R12-297 shall be deleted.
In R12-299, counting register shall be deleted.
R12-300 shall be deleted.
12.5.5.2.2 WAC (Call Initiated - 1)
This section is specified in section 12.5.5.2.2 of GR-303-CORE leaving out TMC descriptions.
In R12-303, “notify the WAC’s Call Control entity to connect the line unit to the specified DS0” isreplaced to “notify the WAC’s Call Control entity to connect the customer side equipment tospecified DS0”.
R12-304 shall be deleted.
R12-306 shall be deleted.
O12-307 shall be deleted.
12.5.5.3 Overlap Sending - 2
12.5.5.3.1 IDT (Overlap Sending - 2)
This section is specified in section 12.5.5.3.1 of GR-303-CORE leaving out TMC descriptions.
12.5.5.3.2 WAC (Overlap Sending - 2)
This section is specified in section 12.5.5.3.2 of GR-303-CORE leaving out TMC descriptions.
In R12-314, WAC does not detect dial pulse digit from customer but receives addressing dial from
customer side equipment during the establishment phase of an originating call.
12.5.5.4 Call Present - 6
12.5.5.4.1 IDT (Call Present - 6)

14

C-IF 3.04-02-TS

This section is specified in section 12.5.5.4.1 of GR-303-CORE leaving out TMC descriptions.
In R12-317, ISDN Basic Access service is not included.
In R12-324, ALERTING message may notice to IDT that WAC has accepted a call, but may notnotice that free air channel is kept and customer has been alerting. This section is applied to single
party.
In R12-325, CALL PROCEEDING message may notice to IDT that WAC has accepted a call, but
may not notice that free air channel is kept and customer has been alerting. This section is applied tosingle party (Direct Dialling In).
12.5.5.4.2 WAC (Call Present - 6 )This section is specified in section 12.5.5.4.2 of GR-303-CORE leaving out TMC descriptions.
R12-327 shall be applied when ISDN Basic Access service has been set up. “line unit” has replaced to“customer side equipment”.
R12-328 may be applied in cause 34 (Channel Unavailable). Cause 44(Line unit unavailable) andcause 47(Ring Failure) may not be applied in this case because these cause value was bring out atcustomer side equipment after the ALERTING message.
In R12-329, ALERTING message may be sent when WAC has accepted a terminating call andconnected customer side equipment to proper DS0. This section is applied to single party.
In R12-334, CALL PROCEEDING message may be sent when WAC has accepted a terminating callwith Direct Dialling In service and connected customer side equipment to proper DS0. This section isapplied to single party (Direct Dialling In).
In R12-335, removing any alerting signal shall not be applied to the line.
12.5.5.5 Call Received - 7
12.5.5.5.1 IDT (Call Received - 7)
This section is specified in section 12.5.5.5.1 of GR-303-CORE leaving out TMC descriptions.
In R12-336, NOTIFY message may be sent by WAC autonomously because alerting cadence is notcontrolled in WAC. After receiving NOTIFY message, calling number delivery service will be carriedout with forwarding received calling number from SN to WAC if customer subscribes to callingnumber delivery.
12.5.5.5.2 WAC (Call Received - 7)
This section is specified in section 12.5.5.5.2 of GR-303-CORE leaving out TMC descriptions.

C-IF3.04-02-TS

15

In R12-341, NOTIFY message may be sent by WAC autonomously because alerting cadence is notcontrolled in WAC. After sending NOTIFY message, calling number shall be received from IDT and
WAC shall forward it to customer side equipment if customer subscribes to calling number delivery.
In R12-342, detection that the customer has answered is performed by WSU and customer side
equipment shall forward to WAC.
12.5.5.6 Call Proceeding - 9
12.5.5.6.1 IDT (Call Proceeding - 9)
This section is specified in section 12.5.5.6.1 of GR-303-CORE leaving out TMC descriptions.
In R12-345, NOTIFY message may be sent by WAC autonomously because start dial signal is notcontrolled in WAC in single party (Direct Dialling In).
In R12-346, R12-347 and R12-348, loop reverse battery circuit is replaced to single party (Direct
Dialling In).
12.5.5.6.2 WAC (Call Proceeding - 9)
This section is specified in section 12.5.5.6.2 of GR-303-CORE leaving out TMC descriptions.
In R12-349, Notify message may be sent by WAC autonomously because start dial signal is notcontrolled in WAC in single party (Direct Dialling In).
In R12-350, loop reverse battery circuit is replaced to single party (Direct Dialling In). After received
the destination number, WAC shall forward it to customer side equipment.
In R12-351, loop reverse battery circuit is replaced to single party (Direct Dialling In).
12.5.5.7 Active -10
12.5.5.7.1 IDT (Active -10)
This section is specified in section 12.5.5.7.1 of GR-303-CORE leaving out TMC descriptions.
In R12-352, detection of swichhook flash or a dial pulse digit is accomplished by WSU and WAC
will forward to IDT with INFORMATION message.
12.5.5.7.2 WAC (Active - 10)
This section is specified in section 12.5.5.7.2 of GR-303-CORE leaving out TMC descriptions.
In R12-354, detection of swichhook flash or a dial pulse digit is accomplished by WSU and WAC
will forward to IDT with INFORMATION message.
R12-356, R12-357 and R12-358 shall be deleted.

16

C-IF 3.04-02-TS

12.5.5.8 Disconnect Request - 11
12.5.5.8.1 IDT (Disconnect Request - 11)
This section is specified in section 12.5.5.8.1 of GR-303-CORE leaving out TMC descriptions.
R12-360 shall be deleted.
12.5.5.8.2 WAC (Disconnect Request - 11)
This section is specified in section 12.5.5.8.2 of GR-303-CORE leaving out TMC descriptions.
R12-367 shall be deleted.
12.5.5.9 Disconnect Indication -1212.5.5.9.1 IDT (Disconnect Indication - 12)
This section is specified in section 12.5.5.9.1 of GR-303-CORE leaving out TMC descriptions.
12.5.5.9.2 WAC (Disconnect Indication -12)
This section is specified in section 12.5.5.9.2 of GR-303-CORE leaving out TMC descriptions.
In addition, when customer entered to permanent signal state because of invalid long off hook, same
RELEASE message shall be applied but cause value of this message may be changed to cause 27(destination out of service). In this case the cause value in the message may not match that in the
DISCONNECT message.
12.5.5.10 Release Request - 19
12.5.5.10.1 IDT (Release Request - 19)
This section is specified in section 12.5.5.10.1 of GR-303-CORE leaving out TMC descriptions.
12.5.5.10.2 WAC (Release Request - 19)
This section is specified in section 12.5.5.10.2 of GR-303-CORE leaving out TMC descriptions.
12.5.5.11 Call Clearing
12.5.5.11.1 IDT (Call Clearing)This section is specified in section 12.5.5.11.1 of GR-303-CORE leaving out TMC descriptions.
In R12-380, detection of the customer’s on-hook is accomplished by WSU and it will be sent bycustomer side equipment to WAC.

C-IF3.04-02-TS

17

R12-383 shall be deleted.
12.5.5.11.2 WAC (Call Clearing)This section is specified in section 12.5.5.11.2 of GR-303-CORE leaving out TMC descriptions.
In R12-385 on receipt of the message, the WAC shall send disconnect signal to customer side
equipment.
R12-386 shows how the WAC reacts when it revives customer’s off hook signal from customer side
equipment.
R12-387 shall be deleted.
12.5.5.12 Coin - Option
This section describes coin telephone function according to Bellcore standard. But these coin
telephone functions are one example and these shall be changed according to national standard.
Bellcore standard is specified in section 12.5.5.12 of GR-303-CORE.
12.5.5.13 Tip Party Test - Option *12.5.5.14 Permanent Signal ProceduresThis section is specified in section 12.5.5.11.2 of GR-303-CORE leaving out TMC descriptions.
In 12-398, the WAC may use cause value 27 in a RELEASE message.
12.5.5.14.1 IDT (Permanent Signal - 100)
This section is specified in section 12.5.5.14.1 of GR-303-CORE leaving out TMC descriptions.
12.5.5.14.2 WAC (Permanent Signal - 100)
This section is specified in section 12.5.5.14.2 of GR-303-CORE leaving out TMC descriptions.
In R12-403, detection of line in permanent signal to be on-hook is accomplished by WSU and it will
be sent from customer side equipment to WAC.
O12-404 shall be deleted.
12.5.5.15 Call State Mismatch ProceduresThis section is specified in section 12.5.5.15 of GR-303-CORE leaving out TMC descriptions.
12.5.5.16 Error Handling Procedures

18

C-IF 3.04-02-TS

This section is specified in section 12.5.5.16 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17 CSC Timers
12.5.5.17.1 T303
This section is specified in section 12.5.5.17.1 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17.2 T305
This section is specified in section 12.5.5.17.2 of GR-303-CORE leaving out TMC descriptions.
R12-447 shall be deleted.
In R12-448, the value of T305 at the IDT may need adaptation according to air interface timer.
12.5.5.17.3 T308
This section is specified in section 12.5.5.17.3 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17.4 T322
This section is specified in section 12.5.5.17.4 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17.5 T397
This section is specified in section 12.5.5.17.5 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17.6 T398 *
12.5.5.17.7 T399
This section is specified in section 12.5.5.17.7 of GR-303-CORE leaving out TMC descriptions andthis is one example of pay phone service.
12.5.5.17.8 T313 *12.5.5.17.9 T396
This section is specified in section 12.5.5.17.9 of GR-303-CORE leaving out TMC descriptions.
12.5.5.17.10 T395
This section is specified in section 12.5.5.17.10 of GR-303-CORE leaving out TMC descriptions.
12.5.5.18 Connect Request - 8 *C-IF3.04-02-TS

19

12.5.5.19 Blocked Originating Call Procedures I *12.5.5.20 Blocked Originating Call Procedures II *12.5.6 Provisioning Scenarios *12.5.7 ISDN Basic Access - Option *12.5.8 Transmission - Voice *12.5.9 Signaling and Supervision *12.5.10 Multiple Interface Group (Multi - IG) Feature
12.5.10.1 Multi - IG Feature Description
This section is specified in section 12.5.10.1 of GR-303-CORE.
Call Reference Value is used as customer side equipment logical number and WAC may support a
provisionable association between customer side equipment logical number and CRVs at the WAC. In
other words, Call Reference Value is used as WCS’s physical number. Association between CRV andcustomer physical number is provisioned according to national operator.
TMC, EOC and ISDN Line Termination are not included.
12.5.10.2 Multi -IG Benefits
This section is specified in section 12.5.10.2 of GR-303-CORE leaving out EOC and TMC
description.
ISDN Line Termination is not included.
12.5.10.3 Requirements on an WAC for Multi -IG FeatureThis section is specified in section 12.5.10.3 of GR-303-CORE leaving out EOC and TMC
description.
12.6 Requirements and Options Supporting Interfacing to the Digital Network
12.6.1 Interface Requirements
This section is specified in section 12.6.1 of GR-303-CORE.
12.6.1.1 Additional DTF- Interfaces Requirements
This section is specified in section 12.6.1.1 of GR-303-CORE.
12.6.1.2 Physical Layer Requirements

20

C-IF 3.04-02-TS

This section is specified in section 12.6.1.2 of GR-303-CORE.
Robbed- bit- signaling and option “16” is not included.
ISDN related description is not included.
12.6.1.3 Data - Link Layer Requirements
This section is specified in section 12.6.1.3 of GR-303-CORE.
ABCD robbed - bit signaling and hybrid signaling is not included.
12.6.1.3.1 ABCD Robbed - Bit Signaling *12.6.1.3.2 Call Processing (TMC/CSC) DL control
This section is included in section 12.6.1.3.2 of GR-303-CORE.
TMC data link is not included.
12.6.1.3.3 Operations DL control *12.6.1.3.4 Convergence Function *12.6.1.3.5 Application Layer *12.6.2 DS1 Facility Protection Switch -Option
This section is included in section 12.6.2 of GR-303-CORE.
12.6.3 EOC and TMC/CSC Path Protection SwitchingThis section is included in section 12.6.3 of GR-303-CORE.
EOC and TMC path protection switching is not included.
12.7 Operations Requirements Across the Generic IDLC Interface *12.8 Requirements and Options Supporting System Turn-up *12.9 UDLC to IDLC Transition Considerations *13. Feature Set C - SONET Interface
This section is specified in section 13 of GR-303-CORE.

C-IF3.04-02-TS

21

Annex A
Examples of PSTN sequence on GR-303-CORE interface(1)

Originating call (successful call setup)(note) This sequence includes Ground Start PBX call setup.
refer to Figure A.1/C-IF3.04(2)

Originating call (originating party disconnection)refer to Figure A.2/C-IF3.04(3)

Originating call (terminating party disconnection)refer to Figure A.3/C-IF3.04(4)

Originating call (not accepted by switch)refer to Figure A.4/C-IF3.04(5)

Originating call (customer abandoned the call)refer to Figure A.5/C-IF3.04(6)

Originating call (WAC rejected the call)refer to Figure A.6/C-IF3.04(7)

Terminating call (successful call setup)refer to Figure A.7/C-IF3.04(8)

Terminating call (originating party disconnection)refer to Figure A.2/C-IF3.04(9)

Terminating call (terminating party disconnection)refer to Figure A.3/C-IF3.04(10)

Terminating call (originating party abandoned the call)refer to Figure A.8/C-IF3.04(11)

Terminating call (WAC rejected the call)refer to Figure A.9/C-IF3.04(12)

Terminating call with Direct Dialling In (successful call setup)refer to Figure A.10/C-IF3.04

22

C-IF 3.04-02-TS

(13)Terminating call with Direct Dialling In (originating party abandoned the call)refer to Figure A.8/C-IF3.04(14)

Terminating call with Calling Line Identification Presentation (success call setup)refer to Figure A.11/C-IF3.04(15)

Permanent signal state (customer is invalid off-hook)refer to Figure A.12/C-IF3.04(16)

Semi- normal sequence (Call Collision)refer to Figure A.13/C-IF3.04(17)

Special Feature (Hooking Signal transmission)refer to Figure A.14/C-IF3.04(18)

Originating Call (pay phone service)refer to Figure A.15/C-IF3.04

C-IF3.04-02-TS

23

WAC

SN

SETUP

SETUP ACKNOWLEDGEDT

INFORMATION•••INFORMATIONCONNECT

RBT

Communication Progress

Figure A.1/C-IF3.04 Originating Call (successful call setup)

24

C-IF 3.04-02-TS

WAC

SN

Communication Progress

DISCONNECT

NOTIFYRELEASERELEASE COMPLETE

Figure A.2/C-IF3.04 Originating Call (originating party disconnection)

C-IF3.04-02-TS

25

WAC

SN

Communication Progress

DISCONNECT

RELEASERELEASE COMPLETE

Figure A.3/C-IF3.04 Originating Call (teminating party disconnection)

26

C-IF 3.04-02-TS

WAC

SN

SETUP

RELEASE COMPLETE

Figure A.4/C-IF3.04 Originating Call (not accepted by switch)

C-IF3.04-02-TS

27

WAC

SN

SETUP

DISCONNECT

NOTIFYRELEASERELEASE COMPLETE

Figure A.5/C-IF3.04 Originating Call (customer abandoned the call)

28

C-IF 3.04-02-TS

WAC

SN

SETUP

SETUP ACKNOWLEDGE

RELEASE COMPLETE

Figure A.6/C-IF3.04 Originating Call (WAC rejected the call)C-IF3.04-02-TS

29

WAC

SN

SETUP

ALERTINGNOTIFYCONNECT

Communication Progress

Figure A.7/C-IF3.04 Terminating Call (successful call setup)

30

C-IF 3.04-02-TS

WAC

SN

SETUP

DISCONNECT

RELEASERELEASE COMPLETE

Figure A.8/C-IF3.04 Terminating Call (originating party abandoned the call)C-IF3.04-02-TS

31

WAC

SN

SETUP

RELEASE COMPLETE

Figure A.9/C-IF3.04 Terminating Call (WAC rejected the call)

32

C-IF 3.04-02-TS

WAC

SN

SETUP

CALL PROCEEDINGNOTIFYINFORMATIONCONNECT

Communication Progress

Figure A.10/C-IF3.04 Terminating Call with Direct Dialling In (successful call setup)

C-IF3.04-02-TS

33

WAC

SN

SETUP

ALERTINGNOTIFYOn-hook transmission(Calling Line Identification Presentation)

CONNECT

Communication Progress

Figure A.11/C-IF3.04 Terminating Call with Calling Line Identification Presentation(successful call setup)

34

C-IF 3.04-02-TS

WAC

SN

Communication Progress

DISCONNECT

RELEASERELEASE COMPLETE

Permanent Signal StateINFORMATIONINFORMATION

Figure A.12/C-IF3.04 Permanent signal state (customer is invalid off-hook)

C-IF3.04-02-TS

35

WAC

SN

SETUP

SETUP

ALERTINGNOTIFYCONNECT

Communication Progress

Figure A.13/C-IF3.04 Semi-normal sequence (Call Collision)

36

C-IF 3.04-02-TS

WAC

SN

Communication Progress

INFORMATION (Hooking Signal)

Figure A.14 /C-IF3.04 Special Feature (Hooking Signal Transmission)

C-IF3.04-02-TS

37

WAC

SN
SETUP

SETUP ACKNOWLEDGEDT

INFORMATION•••INFORMATIONCONNECTRBTNOTIFY (coin control)

NOTIFY (coin gound)

Communication Progress

Figure A.15/C-IF3.04 Originating Call (pay phone service)38

C-IF 3.04-02-TS