Telephone circuit to control off-hook status during receipt of c

Telephone communication apparatus

Telephone communication apparatus and method having automatic se

Telephone communications apparatus

Telephone connection arrangement for a personal computer and a d

Telephone connection system, telephone connecting method,...

Telephone controlled entertainment

Telephone controller apparatus

Telephone customer support utility

Telephone data collection device

Telephone data communication switching system

Telephone device capable of preventing unauthorized...

Telephone dial-inbound data acquisition system with demand readi

Telephone display

Telephone DTMF signal accessible data processor with calculator

Telephone exchange apparatus with facsimile broadcasting facilit

Telephone handset interface for alternating voice-data (AVD) mod

Telephone handset interface for automatic switching between voic

Telephone handset interface for automatic switching between voic

Telephone handset with full-page visual display