Monitoring connection state between main equipment and terminal in network telephone system

A main equipment is used in a network telephone system including telephone terminals and the main equipment. The telephone terminals are connected to a communication network to transmit voice packets. The main equipment connects the telephone terminals to one another through the communication networ...

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Bibliographische Detailangaben

1. Verfasser:	Kitazawa, Kenichi
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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