User`s guide

SYSTEM OVERVIEW

Below are three system examples that illustrate the signal flow between a Vortex device and a

SoundStation VTX 1000.

VOICE (NARROWBAND AND WIDEBAND)

Here, a local talker uses a Vortex device and a SoundStation VTX 1000 to send audio, both narrowband and

wideband, to a remote person via the Public Switched Telephone Network (PSTN). We will assume that

the Remote Talker has a SoundStation VTX 1000 and can receive wideband calls. The Vortex device

receives audio from a microphone in the local room and sends the remote speech to a loudspeaker also in

the local room.