TELEPHONE SYSTEM AND EQUIPMENT

PROBLEM TO BE SOLVED: To enable a user to easily utilize an IP network telephone by linking a telephone network and an IP network. SOLUTION: In call originating side telephone equipment 1, a call is originated to call incoming side telephone equipment 2 by using a telephone network 4, that call orig...

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Bibliographische Detailangaben
1. Verfasser: ABE MINEO
Format: Patent
Sprache:eng
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