A METHOD FOR DISTRIBUTING THE SESSION KEY IN THE MANAGEMENT RANGE OF THE CROSS-GATEKEEPER IN THE DIRECT ROUTE MODE

摘要

A method for distributing a session key across GateKeeper (GK) zones in a direct-routing mode, including the following steps: a caller's GK and a callee's GK determine a session key distributing mode for a caller and a callee to distribute the session key according to information contained in a received message and pre-configured rules for seleting the session key distribution mode. The method makes it possible for the caller's GK and the callee's GK to selet the session key distribution mode, and improves the flexibility of the session key distribution for the GKs.