Establishing call sessions between terminals through plural...

Details Establishing call sessions between terminals through plural... Establishing call sessions between terminals through plural...

2005-10-25

2005-10-25

Vincent, David (Department: 3628)

Multiplex communications

Special services

C370S397000

Reexamination Certificate

active

06958980

ABSTRACT:
A communications system includes a first switch and a second switch coupled to a packet-based network. A first set of network terminals are coupled to the first switch, and a second set of network terminals are coupled to the second switch. Each of the terminals is associated with a virtual terminal number (VTN). Each of the first and second switches store profile information associated with VTNs of the terminals. The profile information relate to the capabilities or features of the network terminals. The switches communicate signaling over a packet-based trunk, or virtual trunk, that is established on the packet-based network. Each switch sends messages to their associated terminals to establish media paths over the packet-based network to establish a call session.

REFERENCES:
patent: 6490451 (2002-12-01), Denman et al.
patent: 6560216 (2003-05-01), McNiff et al.
patent: 6603761 (2003-08-01), Wang et al.
patent: 6622016 (2003-09-01), Sladek et al.
patent: 2002/0001302 (2002-01-01), Pickett

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