Telephonic communications – Special services – Call waiting
Patent
1995-06-01
1996-08-27
Hoffsass, Jeffery
Telephonic communications
Special services
Call waiting
379127, 379142, 379247, H04M 342, H04M 156, H04M 1506, H04M 300
Patent
active
055509088
ABSTRACT:
Techniques are disclosed for providing interoperability between a first modem and a calling identity delivery on call waiting (CIDCW) service. According to an embodiment disclosed herein, a first modem is coupled to an alerting signal receiver and a communications re-establishment device. The alerting signal receiver receives an alerting signal generated in response to an incoming call from a third party line if the first modem is communicating with a second modem. The communications re-establishment device reestablishes communications between the first modem and the second modem after the alerting signal receiver receives an alerting signal. The first modem is equipped to receive the alerting signal and reestablish communications with the second modem independent of the specific capabilities of the second modem, so that these techniques can be utilized in conjunction with a second modem not constructed in accordance with the embodiments disclosed herein.
REFERENCES:
patent: 4852151 (1989-07-01), Dittakavi et al.
patent: 5263084 (1993-11-01), Chaput et al.
patent: 5287401 (1994-02-01), Lin
Bellcore Technical Reference TR-NWT-000575, Issue 1, Oct. 1992, Revision 1, Dec., 1994, "CLASS Feature: Calling Identify Delivery on Call Waiting" FSD 01-02-1090.
Bellcore Technical Reference GR-30-CORE, Issue 1, Dec. 1994, "LSSGR: Voiceband Data Transmission Interface Section 6.6" (replaces Bellcore Technical Reference TR-NWT-000030, Issue 3, Bellcore, Apr. 1992).
Cai Lujing
Dagdeviren Nuri R.
Bartholomew Steven R.
Hoffsass Jeffery
Hong Harry S.
Lucent Technologies - Inc.
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