Patent ID: 6847634
Filing Date: 2005-01-25
Classification: H04L,H04Q

Abstract:
1. A method for distributed call routing, comprising: receiving a call request at a first call manager from a first device coupled to a packet-based network, the call request including a telephone number associated with a second device coupled to the packet-based network and controlled by a second call manager; determining by the first call manager that the second device is controlled by the second call manager by obtaining device location information associated with the telephone number included in the call request, the device location information comprising a node number of the second call manager used to communicate with the second call manager via a tunneling trunk between the first call manager and the second call manager or a process identification (PID) of a process device executing in the second call manager and controlling the second device; communicating the call request to the second call manager; and receiving a call proceed signal from the second call manager.