Enhanced access to telecommunications network
False call protecting apparatus for use with telephone exchange
Hand-held pay telephone and holder
Holder and credit-card unlatching mechanism for a hand-held tele
Method and apparatus for authorization based phone calls in...
Method and apparatus for awarding and redeeming prepaid telephon
Method and apparatus for awarding and redeeming prepaid...
Method and apparatus for awarding and redeeming prepaid...
Method and apparatus for awarding and redeeming prepaid...
Method and apparatus for executing automatic calling card access
Method and apparatus for extending a pre-paid calling card limit
Method and apparatus for extending a pre-paid calling card...
Method and apparatus for facilitating the making of card calls
Method and apparatus for internet-based telephone access to...
Method and apparatus for portable pay phone
Method and apparatus for processing telephone calls charged to c
Method and apparatus for processing telephone calls charged to c
Method and apparatus for summaries of prepaid instrument transac
Method and assembly for providing telephone calling credit in co
Method and combination for providing telephone calling and...