Patent ID: 9559861
Date: 2017-01-31
CPC Classifications: H04L

Claim:
1. A method performed by a device in a local area network for enabling a local area network appliance, supporting a synchronous-invocation/broadcast-notification protocol adapted to perform a synchronous invocation of operations and a broadcast notification of events, to control communication sessions in a wide area network, said wide area network supporting a session-control protocol, comprising: a) receiving from the local area network appliance a synchronous-invocation/broadcast-notification-protocol message invoking an operation for controlling a communication session in the wide area network, the execution of said operation comprising an exchange of at least two session-control-protocol messages with at least one wide area network apparatus supporting said session-control-protocol; b) processing the received synchronous-invocation/broadcast-notification-protocol message to generate a first of said at least two session-control-protocol messages; c) sending the first of said at least two session-control-protocol messages toward said wide area network to start the execution of said operation; d) delaying generation of a synchronous-invocation/broadcast-notification-protocol response for the local area network appliance to the invoked operation until said exchange of said at least two session-control protocol messages is terminated; e) exchanging the rest of said at least two session-control-protocol messages with at least one wide area network apparatus; f) when said exchange of said at least two session-control-protocol messages is terminated, generating the synchronous-invocation/broadcast-notification-protocol response for the local area network appliance, the generated response being indicative of an outcome of the operation; and g) sending the generated response to the local area network appliance.