Communication device for visually impaired persons

Computer input device using an orientation sensor

Cordless telephone handset

Coupling apparatus for telephone handsets

Device for coupling hearing aid to telephone

Device for mounting a telecommunications device for the deaf in

DSP-enabled amplified telephone with digital audio processing

Dual modern architecture to support the transfer of...

Emergency telecommunications device for the disabled

Enhanced telecommunications relay service

Filtering signals in a conference call environment

Hearing assist telephone

In-line text display for telephone terminal employing data filte

Interactive telephone communication system for hearing-impaired

Interactive telephonic device for `VCO` relay communication

Interface apparatus for effecting captioning and communications

Internet access to telecommunications relay service

Internet protocol (IP) relay system and method

Internet-based and network-based relay center access for the...

Internet-based message translation for the hearing and...