SESSION INITIATION PROTOCOL (SIP) MESSAGES INCORPORATING ADDRESS AND/OR ROUTING INFORMATION OBTAINED FROM A CONTACT HEADER OF A REDIRECT MESSAGE
First Claim
1. A method of forming a multi-media communication path between at least one first communication device and at least one second communication device, comprising:
- receiving a request for a multi-media service at a call control element of a multi-media provider system;
processing the request at the call control element for generating a first INVITE message;
sending the first INVITE message to at least one processor of the multi-media provider system for processing the request for the multi-media service to generate a Redirect message; and
receiving the Redirect message at the call control element, wherein the Redirect message includes a contact header portion including a plurality of routing information used by a network routing element of the multi-media provider system to couple said at least one first communication device to said at least one second communication device.
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Accused Products
Abstract
Session Initiation Protocol (SIP) signaling messages, such as a SIP INVITE message and/or a SIP Redirect message, which are adapted for communicating signaling information between a plurality of network elements located on a multi-media services provider system to set-up a call between at least a first communication device and at least a second communication device of a plurality of communication devices. The SIP INVITE message includes a plurality of address and/or routing information located in a request-URI portion. The SIP Redirect message includes a plurality of address and/or routing information located in a contact header portion.
32 Citations
25 Claims
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1. A method of forming a multi-media communication path between at least one first communication device and at least one second communication device, comprising:
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receiving a request for a multi-media service at a call control element of a multi-media provider system;
processing the request at the call control element for generating a first INVITE message;
sending the first INVITE message to at least one processor of the multi-media provider system for processing the request for the multi-media service to generate a Redirect message; and
receiving the Redirect message at the call control element, wherein the Redirect message includes a contact header portion including a plurality of routing information used by a network routing element of the multi-media provider system to couple said at least one first communication device to said at least one second communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. A computer readable medium having a Session Initiation Protocol (SIP) Redirect message adapted to communicate predetermined signaling information between a plurality of network elements of a system, the SIP Redirect message comprising a header portion having at least a Contact header field including a plurality of routing information used by a network routing element of the plurality of network elements to couple at least one first communication device to at least one second communication device.
- 18. A computer readable medium having a Session Initiation Protocol (SIP) INVITE message adapted to communicate predetermined signaling information between a plurality of network elements of a communication system, the SIP INVITE message comprising at least a header portion having at least an INVITE header field including a plurality of routing information used by a network routing element of the plurality of network elements to couple at least one first communication device to at least one second communication device.
Specification