Telephonic communications – Special services – Call waiting
Reexamination Certificate
2005-10-18
2009-11-10
Deane, William J (Department: 2614)
Telephonic communications
Special services
Call waiting
C379S207130
Reexamination Certificate
active
07616752
ABSTRACT:
Methods, systems, and computer program products for providing caller ID and call waiting and for switching or toggling between active and waiting calls using SIP are disclosed. According to one method, a first call is established between a first phone and a SIP termination. The first call is established using the first media connection between the SIP termination and a media gateway and a second media connection between the media gateway and the first phone. During the first call, signaling for establishing a second call to SIP termination is received. In response to the signaling, caller ID information for the second call is communicated to the SIP termination. A hook flash is received from the SIP termination. In response to the hook flash, the SIP termination is connected to the second phone using the first media connection and a third media connection between the media gateway and the second phone.
REFERENCES:
patent: 7142534 (2006-11-01), Whent et al.
patent: 7283545 (2007-10-01), Picha
patent: 7463727 (2008-12-01), Urban et al.
patent: 2002/0114317 (2002-08-01), Dorenbosch et al.
patent: 2002/0181674 (2002-12-01), Cannell et al.
Deane William J
Jenkins Wilson Taylor & Hunt, P.A.
Santera Systems, LLC
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