Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-01-17
1999-10-19
Urban, Edward F.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455411, 379 9314, H04Q 720
Patent
active
059704098
ABSTRACT:
A method for local routing of calls coming from the switched telephone network in a cellular mobile network includes, following a procedure of locating/authenticating the mobile subscriber transmitter/receiver with a fixed radio locating FRLT terminal, forwarding to the FRLT personal communications service subscription data, such as a radio receiver/transmitter (RTR) confidential code and identification number, in attributing a direct inward dialling number (DID number), to the transmitter/receiver and, within the FRLT, forwarding the DID number and the RTR confidential code to a service access authentication center (SAAC). Upon receiving an incoming call from a subscriber telephone handset (STH), an interrogation message with the RTR telephone number is forwarded to the SAAC, and from the SAAC to the FRLT. Upon reception of the interrogation message, a call message containing at least the DID number is forwarded from the SAAC to the FRLT. A transmitter/receiver call procedure is thus initiated from the FRLT, and, upon the transmitter/receiver response, the communication between the STH and the transmitter/receiver is thus established.
REFERENCES:
patent: 5325424 (1994-06-01), Grube
patent: 5357558 (1994-10-01), Yoshikawa
patent: 5440613 (1995-08-01), Fuentes
patent: 5467381 (1995-11-01), Pectonen et al.
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IEEE Journal on Selected Areas in Communications, Two-Way Calling Public CTS Telepoint System, vol. 13, No. 5, by Foo et al, Jun. 1995.
Electrical Communication, vol. 64, No. 1, Jun. 1990, by Betts et al, "ISDN and Intelligent Network Based Telepoint Service".
Blondeau Olivier
Despres Fran.cedilla.ois
France Telecom
Urban Edward F.
LandOfFree
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