Portable telephone system

• Main Authors: NAKASU JIRO, YAMANAKA SHUNJI, MITANI YUJI, TSUKADA TOMOAKI, YAMAMOTO KAZUHIRO, HAYASHI HIDEKI, ONOOKA YASUSHI, KODAKA KUNIO
• Format: Patent
• Language: English
• Published: 09.10.2001
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TELEPHONIC COMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

A switching system (3) has, in addition to an ordinary accounting function, an origination-only accounting control unit 6 to monitor the number of message units used by an origination-only portable telephone (1B) identified by a terminal identification number and to deny the origination of a call by...