METHOD FOR SETTING SPEECH PATH OF TRUNK EXCHANGE CHANNEL AND MULTI-MODEM CHANNEL IN COMMUNICATION PROCESSING SYSTEM AND TELEPHONY NETWORK ACCESS SUBSYSTEM

摘要

PURPOSE: A speech path setting method of a trunk exchange channel and a multi-modem channel in a communication processing system and a telephony network access subsystem are provided to prevent a trunk exchange block by setting the speech path to an empty channel only. CONSTITUTION: A telephony network interface board assembly and a telephony processor interface board assembly(TNIA and TPIA)(201) are directly connected to a protocol through a full electronic switching system and a PCM(Pulse Code Modulation) link and detect a trunk exchange channel to form independently a speech path with one of multi-modems. A telephony service processing board assembly(TSPA)(204) checks the trunk exchange channel of the TNIA and TPIA(201) and an unused communication modem channel to allocate a final communication channel. A highly data processing board assembly(HDPA)(203) manages the multi-modem. A telephony data line interface board assembly(TDLA)(202) negotiates finally a connection with a modem of a PC(Personal Computer) communication subscriber.