Telephone add-on, 8 telephone add-on – TANDBERG 550MXP User Manual
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5.8 Telephone Add-On
The system has a built in audio bridge* that can bring in Voice over IP (VoIP) telephony or normal
telephone sites using ISDN.
Note that this requires a system with mixed audio output (audio from local and far end) and
one audio input without integrated echo cancelling.
In addition to using ISDN and IP for your telephone sites, it is possible to connect a telephone
using normal POTS line** by
Connect the audio out from the conference telephone to the AUX input.
Connect the audio input from the conference telephone to the AUX output, which
provides a mixed signal between local and far end.
*optional MultiSite package available
** require a conference phone with external audio input and output