Patent ID: 9602634
Date: 2017-03-21
CPC Classifications: H04L

Claim:
1. A method, comprising: receiving, by a communication server, a first message in connection with a first communication session that spans a plurality of Back-to-Back User Agents (B2BUAs); assigning, by the communication server, a first global session identifier to the first communication session, the first global session identifier corresponding to a token that identifies the first communication session end-to-end even as the first communication session traverses at least one of the plurality of B2BUAs; receiving, by the communication server, a second message in connection with a second communication session, that also spans the plurality of B2BUAs; assigning, by the communication server, a second global session identifier to the second communication session, the second global session identifier corresponding to a token that identifies the second communication session end-to-end even as the second communication session traverses at least one of the plurality of B2BUAs; examining, by the communication server, at least one of a URI, a header, a parameter, or an attachment of the second message for information which indicates the second communication session is logically associated with the first communication session; determining, by the communication server, at least in response to the examining step, that the first communication session and the second communication session are logically associated with one another; and in response to determining that the first and second communication sessions are logically associated with one another, configuring, by the communication server, at least one message transmitted during at least one of the first and second communication sessions to indicate the association between the first and second communication sessions, and further configuring the at least one message to incorporate the first and second global session identifiers.