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Introduction
1-13
Rear Panel
Figure 1-4 AccessBuilder 500 Rear Panel Features
VOICE This port is used to connect an optional public switched telephone
network (PSTN) telephone handset, or any other compatible analog
equipment, operating in digital tone multiple frequency (DTMF) mode,
by connecting the handset's plug into this port.
This port is in effect an analog to digital convertor which allows you to
use your conventional PSTN telephone on an ISDN line. It is capable of
supporting ringing current and call progress tones, and supports
analog devices to a maximum ringer equivalence number (REN) of one
(United Kingdom). Providing one of the two ISDN B channels is not
being used by the unit, then a voice call can be made.
Incoming ISDN traffic carries both a voice and data identifier and
depending on the type of transmission, a voice call is automatically
directed to the appropriate port connected to the telephone handset.
The Voice port has a British Telecom phone socket. Use the BT to RJ11
converter supplied with the unit to connect voice equipment outside the UK.
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