Session initiation protocol (SIP) message incorporating a multi-purpose internet mail extension (MIME) media type for describing the content and format of information included in the SIP message

• US 8,634,412 B2
• Filed: 11/28/2012
• Issued: 01/21/2014
• Est. Priority Date: 12/19/2002
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Peters, Robert Yaeger Jr., Samarasinghe, Harish
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): HALIYUR, VENKATESH N
• Application Number:
  US13/687,601
• Publication Number:
  US 20130091194A1
• Time in Patent Office: 419 Days
• Field of Search: 370228-503, 709205-248
• US Class Current: 370/352
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/612 for unicast

Abstract

A system and method for processing a plurality of requests for multi-media services received at a call control element (CCE) defined on the system from a plurality of IP-communication devices. The system includes at least one Network Routing Element, a Service Broker, a media sever, a plurality of application servers and a plurality of border elements, all of which are coupled to the CCE. The CCE is adapted to receive requests for multi-media services and to generate subsequent requests for the multi-media services, which are communicated to the SB for processing. The subsequent requests can each include a Session Initiation Protocol (SIP) message including a message identifier portion having at least a first predetermined information field and a second predetermined information field. The message identifier portion of the SIP message declares the content and format of the SIP message to a recipient device defined on the system.

Claims

1. A method of processing a first request message, comprising:

receiving, by a processor of a call control element, the first request message for a multi-media service;

processing, by the processor, the first request message for generating a second request message for the multi-media service and including a content-type header portion having a media type field and a media subtype field, wherein the media type field describes a type of data, and wherein the media subtype field describes a format of the data;

sending, by the processor, the second request message to a service broker element;

receiving, by the processor, a redirect message from the service broker element;

generating, by the processor, a third request message; and

sending, by the processor, the third request message to an application server, wherein the redirect message comprises information pertaining to the application server, wherein the information pertaining to the application server comprises a primary application server and a secondary application server.

2. The method of claim 1, further comprising:

processing the second request message at the service broker element for identifying a content of the second request message, wherein the identifying the content of the second request message includes identifying an advanced intelligent service requested by the second request message.

3. A non-transitory computer-readable medium storing a plurality of instructions which, when executed by a processor of a call control element, cause the processor to perform operations for processing a first request message, the operations comprising:

receiving the first request message for a multi-media service;

processing the first request message for generating a second request message for the multi-media service and including a content-type header portion having a media type field and a media subtype field, wherein the media type field describes a type of data, and wherein the media subtype field describes a format of the data;

sending the second request message to a service broker element;

receiving a redirect message from the service broker element;

generating a third request message; and

sending the third request message to an application server, wherein the redirect message comprises information pertaining to the application server, wherein the information pertaining to the application server comprises a primary application server and a secondary application server.

4. The non-transitory computer-readable medium of claim 3, wherein the second request message is processed at the service broker element for identifying a content of the second request message, wherein the identifying the content of the second request message includes identifying an advanced intelligent service requested by the second request message.

5. A call control element for processing a first request message, comprising:

a processor; and

a non-transitory computer-readable medium storing instructions which, when executed by the processor, cause the processor to perform operations, the operations comprising;

receiving the first request message for a multi-media service;

processing the first request message for generating a second request message for the multi-media service and including a content-type header portion having a media type field and a media subtype field, wherein the media type field describes a type of data, and wherein the media subtype field describes a format of the data;

sending the second request message to a service broker element;

receiving a redirect message from the service broker element;

generating a third request message; and

sending the third request message to an application server, wherein the redirect message comprises information pertaining to application server, wherein the information pertaining to the application server comprises a primary application server and a secondary application server.

6. The call control element of claim 5, wherein the second request message is processed at the service broker element for identifying a content of the second request message, wherein the identifying the content of the second request message includes identifying an advanced intelligent service requested by the second request message