Acoustic communication terminal apparatus and recording...

Acoustic coupler and data transmission apparatus using the same

Acoustic coupler for high-speed modem

Acoustic coupling product label

Adaptable subscriber unit for interactive telephone...

Adapter circuitry for computers to support computer telephony

Adapter for connecting a modem to a digital private branch excha

Adapter for interfacing a work station terminal to a key telepho

Adaptive equalizer

Adaptive pilot tone location in a transmission system

Adaptive voice and data bandwidth management system for multiple

Adjunct arrangement for a telecommunication device

Administrative control and security of modems

ADSI web browser for retrieving internet data files

ADSL filter

Advanced intelligent network interacting with customer premises

Alarm system interface

Alphanumeric keyboard with telephone dialing capability

Alphanumeric message composing method using telephone keypad

Alphanumeric message composing method using telephone keypad