Switch with emulation client

Details Switch with emulation client Switch with emulation client

2006-04-25

2006-04-25

Patel, Ajit (Department: 2664)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S353000, C370S466000

Reexamination Certificate

active

07035248

ABSTRACT:
A switch with emulation client in a data communication network adhering to a Session Initiation Protocol (SIP) . The switch is coupled to a legacy telephone which initiates or receives telephonic communication with a SIP-observant telephone or another legacy telephone over the SIP-observant network. The emulation client translates between PBX and SIP messages to allow the legacy telephone to communicate seamlessly over the SIP observant network. The switch is further coupled to a location server which storing redirection information for redirecting calls made to a particular number. The calls are preferably redirected based on the location where the user is scheduled to be at the time of the call.

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