Method and apparatus for tunneling operating codes to and...

Details Method and apparatus for tunneling operating codes to and... Method and apparatus for tunneling operating codes to and...

2005-05-03

2005-05-03

Chin, Wellington (Department: 2664)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S352000

Reexamination Certificate

active

06888839

ABSTRACT:
Method and apparatus for tunneling operating codes to and from a call server in a packet network. A signaling package for the Megaco/H.248 protocol is provided which encapsulates or “tunnels” control and signaling codes for an endpoint device so that the codes can be communicated between a call server and the device. Only the call server and the endpoint device need have the intelligence to interpret the operating codes. Where the device is a programmable phone, the call server can be provisioned to understand and control specialized functions of the phone without adding new, telephone specific signaling to the standard Megaco/H.248 protocol for each type of phone to be supported. The media gateway that serves the specific telephone in question simply passes on any operating codes received.

REFERENCES:
patent: 6490451 (2002-12-01), Denman et al.
patent: 6614781 (2003-09-01), Elliott et al.
patent: 6680943 (2004-01-01), Gibson et al.
patent: 6728239 (2004-04-01), Kung et al.
patent: 6826173 (2004-11-01), Kung et al.

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