The asynchronous net hand over private trunk management method and its system between the switchboards for hand over in the portable communication system where the synchronization network exists together

摘要

As for this invention, the asynchronous net hand over private trunk management method and its system between the switchboards for hand over in the portable communication system where the synchronization network exists together are disclosed. This invention the above-mentioned asynchronous switchboard is something which connects the trunk with the synchronous switchboards and cuts off the asynchronous switchboard by sending and receiving doing trunk management message with the synchronous switchboards, circuit restarting message, circuit cutoff message and trunk test message and in addition there is a message of addition similar type in the above-mentioned trunk management message.