Telephone control device

Telephone exchange apparatus, telephone exchange system, and...

Telephone exchange including less display elements than channels

Telephone exchange with a further unit

Telephone for storing particulars of outgoing calls and/or speci

Telephone line aggregated billing

Telephone line selector and call accountant

Telephone monitoring device

Telephone monitoring system to reduce consumer payments of telep

Telephone network with telecommuting features

Telephone number display apparatus listing telephone numbers by

Telephone office equipment utilization monitor

Telephone pre-paid calling card system and method

Telephone providing automatic tracking of calling plan charges

Telephone status recognition and bypass system

Telephone system adapted to report to customers telephone facili

Telephone system and method operated from central office loop cu

Telephone system capable of automatically distributing terminati

Telephone system for connecting a customer to a supplier of good

Telephone system, associated exchange, and transmission...