Patent ID: 7072456

Claim:
A procedure for interprocess data transfer in a telephone exchange system in which processes transmit messages between themselves in order to provide services between processes and in which a first process requests a service from a second process, which the second process, based on the request, starts providing the service to the first process and terminates the service when a predetermined condition is fulfilled, wherein the procedure further comprises: receiving with the second process from the first process a service request comprising service parameters and a notification that the requested service concerns a service to be refreshed; saving, with the second process, the service parameters; terminating the service when the predetermined criterion has been fulfilled; receiving with the second process from the first process a service refresh request without any service parameters, the service refresh request relating to the previously requested service; and refreshing the service in accordance with the service refresh request and the saved service parameters when the first process wishes the service to be continued or reactivated.