Source: http://www.google.com/patents/US7680260?ie=ISO-8859-1&dq=7,181,560
Timestamp: 2014-11-27 11:19:10
Document Index: 232373187

Matched Legal Cases: ['Application No. 06252314', 'Application No. 2006', 'Application No. 06252314', 'Application No. 08172838', 'Application No. 06252314', 'Application No. 08172838', 'Application No. 08172857', 'Application No. 200610077248', 'Application No. 200610077248']

Patent US7680260 - Detecting a voice mail system answering a call - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn apparatus and method are disclosed that enable a private branch exchange to determine that a voice mail system has answered a call, without some of the disadvantages in the prior art. The private branch exchange�or, generally-speaking, a data-processing system�infers that the voice mail system...http://www.google.com/patents/US7680260?utm_source=gb-gplus-sharePatent US7680260 - Detecting a voice mail system answering a callAdvanced Patent SearchPublication numberUS7680260 B2Publication typeGrantApplication numberUS 11/120,781Publication dateMar 16, 2010Filing dateMay 3, 2005Priority dateMay 3, 2005Fee statusPaidAlso published asCN1863255A, CN100550946C, EP1720331A2, EP1720331A3, EP2053839A1, EP2112814A1, EP2182711A1, US20060251222Publication number11120781, 120781, US 7680260 B2, US 7680260B2, US-B2-7680260, US7680260 B2, US7680260B2InventorsSandra R. Abramson, Stephen M. MiltonOriginal AssigneeAvaya Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (17), Non-Patent Citations (9), Referenced by (2), Classifications (15), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetDetecting a voice mail system answering a callUS 7680260 B2Abstract An apparatus and method are disclosed that enable a private branch exchange to determine that a voice mail system has answered a call, without some of the disadvantages in the prior art. The private branch exchange�or, generally-speaking, a data-processing system�infers that the voice mail system has answered a call by timing key events or by noting some of indications that are received from another system, or both. Subsequently, the private branch exchange drops the voice mail system from the call, thereby minimizing the non-enterprise voice mail system's handling of calls that are originated to an on-premises terminal.
17. The method of claim 16 wherein the second data-processing system is based on the Global System for Mobile Communications. Description
FIELD OF THE INVENTION The present invention relates to telecommunications in general, and, more particularly, to detecting that a voice mail system has answered a call.
i. the Public Switched Telephone Network, ii. private branch exchange 102, iii. telecommunications terminals 103-1 and 103-2, iv. telecommunications terminals 110-1 and 110-2, and v. telecommunications terminal 111;
The Public Switched Telephone Network (i.e., element 101) is a complex of telecommunications equipment that is owned and operated by different entities throughout the World. In the United States of America, for example, the Public Switched Telephone Network (or �PSTN�) comprises an address space that is defined by ten digits, and, therefore, comprises 10 billion unique addresses or �telephone numbers.� The Public Switched Telephone Networks in other countries are similar.
Private branch exchange 102 is capable of also extending an incoming call (e.g., from terminal 111, etc.) to a telephone number of an �off-premises� terminal in the Public Switched Telephone Network, in addition to switching the same incoming call to an �on-premises terminal� within the enterprise area (e.g., an office building, etc.) that is served by exchange 102. Terminals 103-1 and 103-2 are considered to be on-premises terminals with respect to private branch exchange 102, while terminals 110-1 and 110-2 are considered to be off-premises terminals.
SUMMARY OF THE INVENTION The present invention enables a private branch exchange to determine that a voice mail system has answered a call, without some of the disadvantages in the prior art. The private branch exchange�or, generally-speaking, a data-processing system�infers that the voice mail system has answered a call by timing key events or by noting some of indications that are received from another system, or both. Subsequently, the private branch exchange drops the voice mail system from the call, thereby minimizing the non-enterprise voice mail system's handling of calls that are originated to an on-premises terminal.
Once the private branch exchange determines that a non-enterprise voice mail system has answered a call made to an on-premises terminal, the exchange handles the call accordingly. The private branch exchange can drop the �leg� of the call that was extended to the off-premises terminal, it can continue to wait for an answer from the on-premises terminal, or it can send the call to the enterprise voice mail system, alone or in combination.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 depicts a schematic diagram of a telecommunications system in the prior art.
DETAILED DESCRIPTION FIG. 2 depicts a schematic diagram of a telecommunications system, in accordance with the illustrative embodiment of the present invention. Telecommunications system 200 comprises:
i. the Public Switched Telephone Network, ii. private branch exchange 202, iii. telecommunications terminals 203-1 and 203-2, iv. voice mail system 204, v. mobile switching center 208, vi. cellular voice mail system 209, vii. telecommunications terminals 210-1 and 210-2, and viii. telecommunications terminal 211;
Private branch exchange 202 is capable of also extending an incoming call (e.g., from terminal 211, etc.) to a telephone number of an �off-premises� terminal in the Public Switched Telephone Network, in addition to switching the same incoming call to an �on-premises terminal� within the enterprise area (e.g., an office building, etc.) that is served by exchange 202. Terminals 203-1 and 203-2 are considered to be on-premises terminals, while terminals 210-1 and 210-2 are considered to be off-premises terminals with respect to private branch exchange 202. It will be clear to those skilled in the art, after reading this disclosure, how to make and use alternative embodiments of the present invention in which private branch exchange 202 provides telecommunications service to different numbers of terminals 203 and terminals 210 than those depicted.
At task 406, private branch exchange 202 ends the call to mobile switching center 208. In other words, private branch exchange 202 �drops the leg� of the call that exchange 202 extended to off-premises terminal 210-2. Private branch exchange 202 then continues to monitor whether or not on-premises terminal 203-2 answers the call.
At task 605, private branch exchange 202 ends the call to mobile switching center 208. In other words, private branch exchange 202 �drops the leg� of the call that exchange 202 extended to off-premises terminal 210-2. Private branch exchange 202 then continues to monitor whether or not on-premises terminal 203-2 answers the call.
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Publisher: EPO, Published in: EP.8Yi Shuiying, "CN Application No. 200610077248.3 Office Action Sep. 5, 2008", , Publisher: SIPO, Published in: CN.9Yl Shuiying, "CN Application No. 200610077248.3 Office Action", Mar. 13, 2009, Publisher: The Patent Office of the People's Republic of China, Published in: CN.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8670563 *Dec 8, 2010Mar 11, 2014Tata Consultancy Services Ltd.System and method for designing secure client-server communication protocols based on certificateless public key infrastructureUS20120023336 *Dec 8, 2010Jan 26, 2012Vijayarangan NatarajanSystem and method for designing secure client-server communication protocols based on certificateless public key infrastructure* Cited by examinerClassifications U.S. Classification379/211.02, 379/88.25, 379/212.01International ClassificationH04M3/42Cooperative ClassificationH04M2203/2027, H04M3/5158, H04M3/4878, H04M3/533, H04M3/42017, H04M3/545European 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