The request message for the operation initCall(). The response message for the operation initCall(). The request message for the operation makeCall(). The response message for the operation makeCall(). The request message for the operation denyCall(). The response message for the operation denyCall(). The request message for the operation acceptCall(). The response message for the operation acceptCall(). The request message for the operation getCallInformation(). The response message for the operation getCallInformation(). The request message for the operation endCall(). The response message for the operation endCall(). The request message for the operation setClientConfiguration(). The response message for the operation setClientConfiguration(). The request message for the operation testCommandSocket(). The response message for the operation testCommandSocket(). The request message for the operation setConnectedTo(). The response message for the operation setConnectedTo(). The request message for the operation forwardCall(). The response message for the operation forwardCall(). The request message for the operation isBusy(). The response message for the operation isBusy(). The request message for the operation isOnline(). The response message for the operation isOnline(). The request message for the operation getLastUserAction(). The response message for the operation getLastUserAction(). The request message for the operation getCallStatus(). The response message for the operation getCallStatus(). The request message for the operation sendExecuteSupplementaryServiceMessage(). The response message for the operation sendExecuteSupplementaryServiceMessage(). Initiates a call and returns a CallID for further usage. Makes a call for the provided CallID to a specified Callee. Denies an incoming call with a given CallID and a reason why it is denied. Accepts an incoming call with a given CallID. Returns the call information for a CallID, i.e. the RTP parameters. Ends an established call for a given CallID. Sets the client configuration. If the client configuration is set to null, the client will be de-registered. Tests the command socket, i.e. the port at the client where the services sends messages to. Set the connectedTo value of the RTP session. Forward a call to another recipient. Checks whether a callee is currently busy. Checks whether a callee is currently online. Returns the last timestamp when a user has made some action. Get the call status of a running connection. Initiate the execution of another supplementary service.