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Parameters
Trunk Name
Rxgain
Answer on Polarity
Detection
CID Detection
CID Start
CID Signalling
Busy Detection
Budy Count
Busy Interval
Busy Pattern
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A unique label used to identify this trunk when listed in
outbound rules, incoming rules, etc.E.g. "pstn113".
Used to modify the volume level of this trunk. Normally,
this setting does not need to be changed.
Use a polarity reversal to mark when a outgoing call is
answered by the remote party
For FXO trunks, this option forces PBX to look for Caller
ID on incoming calls.
This option allows you to define the start of a Caller ID
signal:
Ring: Start when a ring is received (Caller ID Signaling:
Bell_USA, DTMF).
Polarity: Start when a polarity reversal is started (Caller
ID Signaling: V23_UK, V23_JP,DTMF).
Before Ring: Start before a ring is received (Caller ID
Signaling: DTMF).
This option defines the type of Caller ID signaling to use.
It can be set to one of the following:
Bell_USA: bell202 as used in the United States
v23_UK: suitable in the UK
v23_Japan: suitable in Japan
v23-Japan pure: suitable in Japan
DTMF: suitable in Denmark, Sweden, and Holland
Busy Detection is used to detect far end hang-up or for
detecting a busy signal. Select "Yes" to turn this feature
on.
If Busy Detection is enabled, it is also possible to specify
how many busy tones to wait for before disconnecting
the call. The default is 4, but better results can be
achieved if set to 6 or even 8. Remember, the higher the
number, the more time will be required to release a
channel. A higher setting lowers the probability that you
will encounter random hang-ups.
The busy detection interval
If Busy Detection is enabled, it is also possible to specify
the cadence of your busy signal.In many Countries, it is
500msec on, 500msec off. If a Busy Pattern is not
specified,The system will accept any regular sound-
silence pattern that repeats <Busy Count> times as
a busy signal. If you specify Busy Pattern, then the
system will further check the length of the tone and
silence, which will further reduce the chance of a false
positive disconnection.
MUC1004 Administrator guide
Description
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