COMMUNICATION SERVICE NETWORK AND COMMUNICATION SERVICE SYSTEM

PROBLEM TO BE SOLVED: To provide a communication service network capable of keeping a terminal number secret, while permitting an incoming call from a terminal having a trusting relationship with a user of the terminal on an incoming call side in accordance with a signal procedure and preventing an...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAKEKOSHI HIROSHI, OGAWA TAKESHI, YAMATO YOJI, AKAHANI JUNICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING CODING OR CIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHERPURPOSES INVOLVING THE NEED FOR SECRECY CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PHYSICS SEALS TELEPHONIC COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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