Patents by Inventor Sai Samavedam

Sai Samavedam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SIP-based call session server and message-routing method
    Patent number: 8364828
    Abstract: A method and SIP-based Call Session Server for routing SIP messages. A Network and Transport layer receives an incoming SIP message and forwards it to one of a plurality of SIP message routing process instances in a SIP Message Routing Framework. The receiving SIP message routing process instance determines a Routing-Key based upon at least one header field in the incoming message, and based upon the Routing-Key, forwards the incoming message to a selected one of a plurality of Back-to-Back User Agent (B2BUA) instances in a Call Session Control Framework. The selected B2BUA instance creates an outgoing SIP message utilizing the Routing-Key to generate a From-Tag in an outgoing request message, or to generate a To-Tag in an outgoing response message, and then forwards the outgoing message to the Network and Transport layer, which transmits the outgoing message.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: January 29, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Sai Samavedam, Kevin Cunningham
  • SIP-BASED CALL SESSION SERVER AND MESSAGE-ROUTING METHOD
    Publication number: 20120016996
    Abstract: A method and SIP-based Call Session Server for routing SIP messages. A Network and Transport layer receives an incoming SIP message and forwards it to one of a plurality of SIP message routing process instances in a SIP Message Routing Framework. The receiving SIP message routing process instance determines a Routing-Key based upon at least one header field in the incoming message, and based upon the Routing-Key, forwards the incoming message to a selected one of a plurality of Back-to-Back User Agent (B2BUA) instances in a Call Session Control Framework. The selected B2BUA instance creates an outgoing SIP message utilizing the Routing-Key to generate a From-Tag in an outgoing request message, or to generate a To-Tag in an outgoing response message, and then forwards the outgoing message to the Network and Transport layer, which transmits the outgoing message.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventors: Sai Samavedam, Kevin Cunningham