Patent ID: 8626849

Claim:
A method at an intermediary server, between two end points exchanging media, the method comprising: receiving, at the intermediary server, a first re-INVITE message from a first end point of the two end points, wherein the first end point has a first session initiation protocol (SIP) dialog with the intermediary server having an associated ownership status, the first SIP dialog established using first session description protocol characteristics (SPD 1 ); receiving, at the intermediary server, a second re-INVITE message from a second end point of the two end points causing a glare condition between the two end points, wherein the second end point has a second SIP dialog with the intermediary server having the same associated ownership status as the first SIP dialog, the second SIP dialog established using second session description protocol characteristics (SPD 2 ); sending, from the intermediary server, a first 491 Request Pending message to the second endpoint in response to the received second re-INVITE message; receiving, at the intermediary server, a second 491 Request Pending from the second endpoint; initiating, at the intermediary server, a back-off period of time based on the ownership status of the second SIP dialog; and re-sending, from the intermediary server, the first re-INVITE message to the second end point after expiry of the back-off period of time.