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TEL-14 TWO-CHANNEL TELEPHONE INTERFACE
The above initial automatic nulling process should not need to be
repeated, unless the telephone line connection is changed to a
different telephone number or if there is reason to believe the
telephone line impedance has changed significantly--for example, if
echoing or feedback occurs at a lower volume setting than before.
OPERATION
This section describes the operation of the TEL-14 in each of the
following modes:
•
Intercom-station telephone access
•
Self-service dial-in
•
Manual call screening
•
Intercom-to-intercom
•
Party-line dial-in
INTERCOM-STATION TELEPHONE-ACCESS
MODE
In
“intercom-station telephone-access” mode, a call on a TEL-14 line
can be answered by any intercom station with a selector key
assigned to a TEL-14 port label. Intercom stations can originate a call
by using the "dial phone" mode.
If the call must originate at another station model, then this station
must have a key programmed to activate a DTMF sequence.
Another way to arrange this is for the operator to have access to a
standard telephone set connected with the TEL-14 line (for further
information, see "Manual Call Screening Operation" below).
The default settings of the TEL-14 allow
“station access” mode.
If the
“immediate manual disconnect” feature is disabled, there will be
a period of 15 seconds between the time when you deactivate the
path to the TEL-14 port and the time when the TEL-14 hangs up the
line. This gives you time to transfer the call to another station, or to
recover an accidental deactivation of the path to the TEL-14 without
losing the call.
If your station is on the "preset call signal list" for the TEL-14 port,
you will automatically receive a call signal whenever the TEL-14
answers an incoming telephone call. The call signal will continue
for as long as the line is ringing.
SELF-SERVICE DIAL-IN MODE
In
“self-service dial-in” mode, also referred to as "telephone IFB" mode,
the TEL-14 will answer automatically whenever outside callers dial in.
The caller will be automatically connected to a preset party-line,
station, or program feed.
Auto-disconnect will release the line automatically after the caller
hangs up. This mode can also be used to implement "direct inward
access" and "dial-up IFB". This mode is normally configured to
"prevent stations from calling out" to leave the line available for dial-
in use only. If you are calling from an outside line in
“self-service dial-
in
” mode, the audio paths are normally preset and available as soon
as the TEL-14 answers your call. The TEL-14 will answer your call
after either 1 or 4 rings, depending on how you configure it.
Summary of Contents for ECLIPSE TEL-14
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