Method and apparatus for supporting spontaneous call waiting ide

Details Method and apparatus for supporting spontaneous call waiting ide Method and apparatus for supporting spontaneous call waiting ide

1996-05-02

1998-09-22

Loomis, Paul

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379215, 379376, 455415, H04M 156, H04M 342, H04M 100

Patent

active

058126490

ABSTRACT:
A method and apparatus for allowing a conventional caller identification adjunct device to support spontaneous call waiting identification service. During an ongoing call, CPE alerting signals indicating a second, incoming call are received by a converter device which mutes a line to the connected telephone and responds with the appropriate DTMF signal. Following the correct response, the telephone company sends information in an FSK format which describes the number and name of a second caller. Upon receiving the FSK information, the converter adds the appropriate protocol information to the FSK information so that it can be understood by the CID display device. The modified information is then transferred to the CID display device where it is displayed.

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patent: 5559860 (1996-09-01), Mizikovsky
patent: 5581599 (1996-12-01), Tsuji et al.
patent: 5583924 (1996-12-01), Lewis
National Assistive Device Center.RTM. Product Catalog, HITEC Group International, Inc., 1995.

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