Voice bridge for a relay center

Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...

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379 52, 379 96, H04M 1100

Patent

active

053512880

ABSTRACT:
A voice bridge for a telephone relay for the hearing impaired is constructed so as to pass voice data to and/or from a user who is capable of either speaking or hearing voice. The voice bridge is capable of passing voice communication between a pair of telephone lines while excluding data carrier TDD signals from passage. Several methods are possible to achieve TDD signal exclusion. A privacy option is also included to exclude the relay station operator from overhearing parts of conversation when the operator's assistance is not required.

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