Patent ID: 7558239
Filing Date: 2009-07-07
Classification: H04Q,H04W

Abstract:
1. A method for establishing a connection in a communication network, comprising: monitoring negotiation signaling received at a signaling control unit; determining whether a first type of call connection is supported based on the monitoring of the negotiation signaling; implementing a call through the first type of call connection if the negotiation signaling indicates that the first type of call connection is supported; simultaneously initiating a second type of call connection and a third type of call connection if the negotiation signaling indicates that the first type of call connection is not supported; determining, based on a received signal, whether the second type of call connection is supported; if the second type of call connection is supported, implementing the call through the second type of call connection; and if the second type of call connection is not supported, maintaining the third type of call connection.