PHS MoU Document
B-IF3.37-02-TS
Title: Public Personal Handy-phone System : Network-Network Interface for Call Control
Signalling System No.7 - Application of the ISDN User Part for International ISDN Interconnections

Version: 02
Date: May 15, 1998
PHS MoU Classification: Unrestricted
List of contents:<Summary>
1. Relation with International Standards
2. Differences from ITU-T Recommendation Q.767
3. Reference
4. Item for Further Study<text>
1.
2.
3.

GeneralRequired additional ISUP parameter
ISUP procedures for a call originated by / terminated to a public PS

Number of pages: 1PHS MoU Group
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PHS MoU Document
B-IF3.37-02-TS
VersionHistory of Revised Versions
DateOutline

0102

EstablishedMay 15,1998

B-IF3.37-02-TS
Public Personal Handy-Phone System:
Network-Network Interface for Call Control
Signalling System No. 7Application of the ISDN User Part for International ISDN Interconnections<Summary>
1. Relation with International Standards
This specification conforms to ITU-T Recommendation Q.767 in principle and specifies new protocol
elements and procedures to provide PHS roaming basic service.
2. Differences from ITU-T Recommendation Q.767
The differences between this specification and ITU-T Q.767 are summarized in the Table 1/B-IF3.37.
In case of §Roaming number assignment method No.1¨, it is recommended to use ©generic number(additional called number) parameter' in IAM defined in ITU-T Recommendations Q.762 and Q.763(White Book version) for transferring ©PHS number' which identifies the public PS. However, somenetworks may transfer ©PHS number' using the other parameter which is defined as national orregional specifications.
In case of §Roaming number assignment method No.2¨, §Generic Number parameter¨ or otherspecific parameter in order to transfer §PHS number¨ is not required.
3. References
ITU-T Recommendation Q.767
PHS MoU Specifications B-IF3.00, B-IF3.31, B-IF3.32, B-IF3.33, B-IF3.34, B-IF3.36
4. Items for Further Study
Following items are recognized to be under study:a) roaming basic service using §Redirection method¨ andb) Interaction with other supplementary services which use ©generic number (additional callednumber) parameter.ªTable 1/B-IF3.37 Differences between the specification and ITU-T Q.767
Item1) Generic number parameter

Difference
For ITU-T Q.767 based on Blue
Book text, this parameter is addedin this specification.

2) ISUP procedures for acall originated by / terminated to a public PS

This clause is added in thisspecification.

Reasons
In PHS roaming service callprocedure, a generic numberparameter is sent in direction fromHome network to Visited network
indicating the terminating PHSnumber.
To provide ISUP procedures for acall originated by / terminated to apublic PS.

B-IF3.37-02-TS (1)B-IF3.37-02-TS

Public Personal Handy-Phone System:
Network-Network Interface for Call Control
Signalling System No. 7Application of the ISDN User Part for International ISDN Interconnections

Contents
1 General .................................................................................................................................1
2 Required additional ISUP parameter.....................................................................................1
2.1 Generic number parameter .................................................................................................1
2.1.1 Definition.........................................................................................................................1
2.1.2 Formats and codes ...........................................................................................................1
3 ISUP procedures for a call originated by/terminated to a public PS.....................................1

B-IF3.37-02-TSL

B-IF3.37-02-TSPublic Personal Handy-Phone System:
Network-Network Interface for Call Control
Signalling System No. 7Application of the ISDN User Part for International ISDN Interconnections
1. General
This specification conforms to ITU-T Recommendation Q.767 in principle. See ITU-T Recommendation Q.767 with additional specification described below.

2. Required additional ISUP parameter
This clause specifies an additional ISUP parameter to provide PHS basic roaming service for ITU-T
Recommendation Q.767 based on Blue Book text.
2.1 Generic number parameter2.1.1 Definition
A number information sent in either direction to enhance network operation or for supplementary
service.
2.1.2 Formats and codes
See PHS MoU Specification B-IF3.33.

3. ISUP procedures for a call originated by/terminated to a public PS
See PHS MoU Specification B-IF3.34 Annex a.

B-IF3.37-01-TS 1