(57) ABSTRACT A communications system that Supports multimedia compo nents is easily
adapted to existing network elements. Voice components arriving at or coming from a user …

5,454,032 A 9, 1995 Pinard et al. 5,920,815 A 7, 1999 Akhavan 6,097,802 A 8, 2000
Fleischer et al. 6,259,782 B1 7/2001 Gallant 6,304,649 B1 10/2001 Lauzon et al. 6,445,694 …

The present invention provides a combined user agent (CUA) to represent a telephone
supported by a circuit-switched telephony switch and a packet-based media device as an …

The present invention uses a combined user agent to allow parties associated with a shared
directory number to com municate with each other in the multimedia domain before, during …

An automated attendant system is made multimedia capable by adding a combined user
agent to the automated attendant. A search is done to verify that the caller to the automated …

A network-based service is utilized to facilitate twinning of two or more communication
devices associated with a subscriber account. Incoming communication is intercepted by a …

An automated attendant system is made multimedia capable by adding a combined user
agent to the automated attendant. A search is done to verify that the caller to the automated …

The present invention monitors call signaling events stem ming from a circuit-switched call
between a caller and a called party and controls a packet-session between user agents on …

An automated attendant system is made multimedia capable by adding a combined user
agent to the automated attendant. A search is done to verify that the caller to the automated …

According to one embodiment, a telephone system provided with a plurality of telephone
exchange apparatuses, wherein each telephone exchange apparatus accommodates a …