Patent ID: 7831266
Filing Date: 2010-11-09
Classification: H04W

Abstract:
1. A method for routing a push-to-talk (PTT) call in a communications network, comprising the steps of: receiving a PTT call request at a regional call processor of the communications network, wherein the PTT call request includes an address for a called party with a first user part and a second domain part, wherein the second domain part is associated with the communications network and wherein the second domain part is of a QChat domain; consulting a table by the regional call processor to determine whether the second domain part is associated with the communications network; and routing the PTT call request to a central call processor of the communications network if the second domain part is associated with the communications network and routing the PTT call request to a gateway if the second domain part is not associated with the communications network, wherein the central call processor is coupled to an inter-carrier call handler and further comprising the step of routing the call request to the QChat domain by the inter-carrier call handler.