The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2005
Filed:
Oct. 19, 2000
Shwu-yan Chang Scoggins, Cary, NC (US);
John Schroder, Apex, NC (US);
Janelle T. Tucker, Maineville, OH (US);
Shwu-Yan Chang Scoggins, Cary, NC (US);
John Schroder, Apex, NC (US);
Janelle T. Tucker, Maineville, OH (US);
Nortel Networks Limited, St. Laurent, CA;
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.