Patent ID: 8072969

Claim:
A VoIP terminal speech quality control system in a communication system comprising a LAN (Local Area Network) access point and a VoIP (Voice over IP) terminal, wherein said access point comprises; a data storage table for storing a MAC address of a VoIP terminal performing a VoIP communication, holding status information corresponding to said MAC address and indicative of a holding state of said VoIP terminal, and data on the number of in-call terminals; and a CPU that monitors all transmitting/receiving packets of the VoIP terminal connected to a LAN, sequentially compares the transmitting/receiving packets with a bit string of a holding start command set in advance and, when a bit string agreeing with said bit string of the holding start command is detected from the compared packet, stores holding status information of the VoIP terminal included in said packet into said data storage table, but does not change said data on the number of in-call terminals.