CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
■ [1] Enable
Answer and Disconnect Supervision Parameters
The answer and disconnect supervision parameters are described in the table below.
Table 72-65:Answer and Disconnect Parameters
Parameter Description
'Wait before PSTN Release-Ack'
wait-befor-pstn-rel-ack
[TimeToWaitForPstnReleaseAck]
Defines a timeout (in milliseconds) that the device
waits for the receipt of an ISDN Q.931 Release
message from the PSTN side before releasing the
channel. The Release ACK is typically sent by the
PSTN in response to the device's Disconnect
message to end the call. If the timeout expires and a
Release message has not yet been received, the
device releases the call channel.
The valid value is 1 to 360,000. The default is 6,000.
Note: The parameter is applicable only to digital
interfaces.
'Answer Supervision'
configure voip > gateway
analog fxo-setting >
answer-supervision
[EnableVoiceDetection]
Enables the sending of SIP 200 OK upon detection of
speech, fax, or modem.
■ [1] Yes = The device sends a SIP 200 OK (in
response to an INVITE message) when speech,
fax, or modem is detected (from the Tel side, for
analog interfaces).
■ [0] No = (Default) The device sends a SIP 200
OK only after it completes dialing (to the Tel side,
for analog interfaces).
Typically, this feature is used only when early media,
enabled by the [EnableEarlyMedia] parameter, is
used to establish the voice path before the call is
answered.
Note:
■ The parameter is applicable only to the Gateway
application.
■ FXO interfaces: The feature is applicable only to
one-stage dialing (FXO).
■ Digital interfaces:
✔ The parameter is applicable only when the
protocol type is CAS.
✔ To activate the feature, set the
EnableDSPIPMDetectors parameter to 1.
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