User`s manual

SIP User's Manual 5. Web Management
Version 5.0 79 December 2006
Table 5-8: Advanced Parameters, General Parameters (continues on pages 78 to 82)
Parameter Description
Enable DID Wink
[EnableDIDWink]
Disable
[0] = DID is disabled (default).
Enable
[1] = Enable DID.
If enabled, the MediaPack 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).
Reanswer Time
[RegretTime]
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.
Delay Before DID Wink
[DelayBeforeDIDWink]
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.
Disconnect and Answer Supervision
Enable Polarity Reversal
[EnableReversalPolarity]
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.
Enable Current Disconnect
[EnableCurrentDisconnect]
Disable
[0] = Disable the current disconnect service (default).
Enable
[1] = Enable the current disconnect service.
If the current disconnect service is enabled, the FXO gateway releases a call
when current disconnect signal is detected on its port, while the FXS gateway
generates a ‘Current Disconnect Pulse’ after a call is released from IP.
The current disconnect duration is determined by the parameter
‘CurrentDisconnectDuration’. The current disconnect threshold (FXO only) is
determined by the parameter ‘CurrentDisconnectDefaultThreshold’. The
frequency at which the analog line voltage is sampled is determined by the
parameter ‘TimeToSampleAnalogLineVoltage’.
Disconnect on Broken
Connection
[DisconnectOnBrokenConne
ction]
No
[0] = Don’t release the call.
Yes
[1] = Call is released if RTP packets are not received for a predefined
timeout (default).
Note 1: If enabled, the timeout is set by the parameter
‘BrokenConnectionEventTimeout’, in 100 msec resolution. The default timeout
is 10 seconds: (BrokenConnectionEventTimeout =100).
Note 2: This feature is applicable only if RTP session is used without Silence
Compression. If Silence Compression is enabled, the gateway doesn’t detect
that the RTP connection is broken.
Note 3: During a call, if the source IP address (from where the RTP packets
were sent) is changed without notifying the gateway, the gateway filters these
RTP packets. To overcome this issue, set ‘DisconnectOnBrokenConnection=0’;
the gateway doesn’t detect RTP packets arriving from the original source IP
address, and switches (after 300 msec) to the RTP packets arriving from the
new source IP address.
Broken Connection Timeout
[BrokenConnectionEventTi
meout]
The amount of time (in 100 msec units) an RTP packet isn’t received, after
which a call is disconnected.
The valid range is 1 to 1000. The default value is 100 (10 seconds).
Note 1: Applicable only if ‘DisconnectOnBrokenConnection = 1’.
Note 2: Currently this feature works only if Silence Suppression is disabled.