AN ELECTRONIC EXCHANGER

摘要

receiving an initiating request message from a free phone/credit call application service element to form the initiating response message with a signalling connection control part within a protocol processor; transmitting the initiating request message to the signalling connection control part and standing by the response from the signalling connection control part and before the response is generated, if the initiating message from the free phone/credit call application service element is received, transmitting the initiating message to the signalling connection control part and standing by the response from the signalling connection control part; and if received an initiating response message, initiating free phone/credit call service associated data, loading process number of a dialogue handling block and a component handling block performing a transaction function in the protocol processor to make the initiating message and transmitting the initiating message to the free phone/credit call application service element.