3Com VCX v7111 User Manual page 92

Parameter
Enable Digit Delivery to Tel
[EnableDigitDelivery]
Enable DID Wink
[EnableDIDWink]
Reanswer Time
[ RegretTime ]
Delay Before DID Wink
[DelayBeforeDIDWink]
Disconnect and Answer Supervision
Enable Polarity Reversal
[ EnableReversalPolarity ]
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Description
Disable [0] = Disabled (default).
Enable [1] = Enable Digit Delivery feature for V7111/FXO & FXS.
The digit delivery feature enables sending of DTMF digits to the gateways
port after the line is offhooked (FXS) or seized (FXO). For IP Tel calls, after
the line is offhooked / seized, the V7111 plays the DTMF digits (of the called
number) towards the phone line.
The called number can also include the characters p (1.5 seconds
pause) and d (detection of dial tone). If the character d is used, it
must be the first digit in the called number. The character p can be
used several times.
For example, the called number can be as follows: d1005, dpp699,
p9p300.
To add the d and p digits, use the usual number manipulation rules.
To use this feature with FXO gateways, configure the gateway to
work in one stage dialing mode.
If the parameter EnableDigitDelivery is enabled, it is possible to
configure the gateway to wait for dial tone per destination phone
number (before or during dialing of destination phone number),
therefore the parameter IsWaitForDialTone (that is configurable for
the entire gateway) is ignored.
The FXS gateway sends 200 OK messages only after it finishes
playing the DTMF digits to the phone line.
Disable [0] = DID is disabled (default).
Enable [1] = Enable DID.
If enabled, the V7111 can be used for connection to EIA/TIA-464B DID Loop
Start lines. Both FXO (detection) and FXS (generation) are supported.
An FXO gateway dials DTMF digits after a Wink signal is detected (instead of
a Dial tone).
An FXS gateway generates the Wink signal after the detection of offhook
(instead of playing a Dial tone).
The time period (in seconds) after user hangs up the phone and before call is
disconnected (FXS). Also called regret time.
The default time is 0 seconds.
Defines the time interval (in seconds) between detection of offhook and
generation of DID Wink. Applicable only to FXS gateways.
The valid range is 0 to 1,000. The default value is 0.
Disable [0] = Disable the polarity reversal service (default).
Enable [1] = Enable the polarity reversal service.
If the polarity reversal service is enabled, then the FXS gateway changes the
line polarity on call answer and changes it back on call release.
The FXO gateway sends a 200 OK response when polarity reversal signal is
detected (applicable to one stage dialing only), and releases a call when a
second polarity reversal signal is detected.
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3Com VCX V7111 VoIP Gateway User Guide