Patent ID: 8537695

Claim:
A method for establishing a call over a packet network said method comprising: receiving, at a call control manager located on the packet network, a call request via an originating trunk on a packet network from an originating call device of a calling determining, by the call control manager, a transmission path from the originating trunk to a terminating segment of a terminating call device; determining status of the originating trunk, wherein determining status of the originating trunk includes determining a worst operational performance of status parameters used for determining status; determining status of the terminating segment; responsive to a determination that the status of the originating trunk and terminating segment are within a:first range, establishing the call between the originating and terminating call device over the determined transmission path at a first data rate; responsive to a determination that the status of the originating trunk or terminating segment is within a second range, determining whether the originating trunk and terminating segment can operate at a second, lower data rate; responsive to a determination that the originating trunk and terminating segment can operate at a second, lower data rate, establishing the call over the transmission path between the originating call device and terminating call device at the second, lower data rate, wherein establishing the call over the transmission path between the originating call device and terminating call device at the second, lower data rate comprises: sending, by the call control manager, an invite with the second, lower data rate to the terminating segment; receiving, at the call control manager, a positive response message from the terminating segment in response to the invite containing the second, lower data rate; and sending, by the call control manager, an information message to the originating trunk that includes the second, lower data rate; responsive to a determination that the originating trunk and terminating segment cannot operate at a second, lower data rate, sending a call reject message to the originating line, automatically continue to regularly attempt to set-up the call; responsive to a determination that the call request is able to be established, notifying the calling party that the call can now be set-up; and rejecting the call request if status of either the originating trunk or terminating segment is within a third range, and sending a reject message to the originating call device.