Apparatus for receiving voice signal and data and...

Apparatus for selectively connecting a telephone to a...

Apparatus for speed and data communication

Apparatus for switching telephone line a response device, a data

Apparatus for television display of telephone audio and data dia

Apparatus having a dial calling function and operable to identif

Apparatus system and method for enabling multi-frequency...

Apparatus to provide a remote display of the operating condition

Apparatus, method and software for call-waiting tone detection

Apparatus, method, and record medium for automatically...

Appliance communication system

Application and communication platform for connectivity...

Application programming interface for computer telephone sets

Application terminal

Arbitrary selecting of a terminal to be called in key telephone

Arrangement for acquisition of services via a telephone set

Arrangement for authenticating user and authorizing use of...

Arrangement for connecting a telefax device or a telephone set t

Arrangement for data transmission utilizing telephone network

Arrangement for displaying menu screens on a telephone terminal