FIELD: radio engineering, communication.
SUBSTANCE: client-side signalling mechanism that allows a client to control how a telephone call is handled on a call server is disclosed. The client user can create call routing rules on the client device using a client control component that manages session protocol messages. Once created, the call routing rule(s) created on the client are transmitted to the call server where a call routing component of the call server processes the rule(s) for a call related to the client. When the server receives the rule(s) and determines that the rule(s) are related to an existing call (incoming or currently in process), the server halts current normal server rules processing for that call and executes the client-created rule(s). SIP session messages are employed for client control of server-side call forwarding.
EFFECT: enabling creation of call routing rules on a client based on use session protocol messages via an existing session protocol.
20 cl, 18 dwg
