Methods for cellular pay phone/debit phone support

Details Methods for cellular pay phone/debit phone support Methods for cellular pay phone/debit phone support

H - Electricity

04

M

H04M 15/00 (2006.01) H04M 15/28 (2006.01) H04M 17/00 (2006.01) H04M 17/02 (2006.01) H04Q 7/22 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2275698

A communications system for providing charge rate support, and a method for providing Authentication and Privacy, to pay/debit phones are disclosed. A cellular controller within the system enables the pay/debit phones to communicate with other phones. The system calculates a charge rate for a call being made by a pay/debit phone and sends it to that phone in a message containing a standard air interface message that is being used in a non-standard manner. This message allows the pay/debit phone to determine the charge rate. The charge rate information is also sent using mobile station control messages in a non-standard manner. Each control message contains an Order Code, a Qualifier Code, and a Local/Message Type. A first combination of these items is assigned to Authentication and Privacy and a second combination, mutually exclusive with the first, is assigned to sending charge rates.

Système de communication destiné à fournir un support de facturation, et procédé destiné à fournir l'authentification et le secret à des publiphones. Un dispositif de commande cellulaire placé au sein du système permet aux publiphones de communiquer avec d'autres téléphones. Le système calcule un montant dû pour un appel passé depuis un publiphone et l'envoie à ce publiphone dans un message contenant un message standard d'interface par les airs qui est utilisé de manière non standard. Ce message permet au publiphone de déterminer le montant dû. Les informations de montant dû sont également envoyées à l'aide de messages de commande de station mobile de manière non standard. Chaque message de commande contient un code d'ordre, un code de qualification et un type local/message. Une première combinaison de ces éléments est assignée à l'authentification et au secret et une seconde combinaison, ces deux combinaisons s'excluant mutuellement, est assignée à l'envoi des montants dus.

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