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event flashhook
Note: This parameter is applicable only to T1 CAS protocols.
66.11.8 Answer and Disconnect Supervision Parameters
The answer and disconnect supervision parameters are described in the table below.
Answer and Disconnect Parameters
Parameter Description
Web: Answer
Supervision
EMS: Enable Voice
Detection
CLI: 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.
 [0] No = (Default) The device sends a SIP 200 OK only after it
completes dialing to the Tel side.
Typically, this feature is used only when early media (enabled using the
EnableEarlyMedia parameter) is used to establish the voice path before
the call is answered.
Notes:
 FXO interfaces: This feature is applicable only to one-stage dialing
(FXO).
 Digital interfaces: To activate this feature, set the
EnableDSPIPMDetectors parameter to 1.
 Digital interfaces: This feature is applicable only when the protocol
type is CAS.
Web/EMS: Max Call
Duration (min)
CLI: mx-call-duration
[MaxCallDuration]
Defines the maximum duration (in minutes) of a call. If this duration is
reached, the device terminates the call. This feature is useful for
ensuring available resources for new calls, by ensuring calls are
properly terminated.
The valid range is 0 to 35,791. The default is 0 (i.e., no limitation).
CLI: configure voip > sip
advanced-settings > set
mn-call-duration
[MinCallDuration]
Defines the minimum call duration (in seconds) for the Tel side. If an
established call is terminated by the IP side before this duration expires,
the device terminates the call with the IP side, but delays the
termination toward the Tel side until this timeout expires.
The valid value range is 0 to 10 seconds, where 0 (default) disables this
feature.
For example: assume the minimum call duration is set to 10 seconds
and an IP phone hangs up a call established with a BRI phone after 2
seconds. As the call duration is less than the minimum call duration, the
device does not disconnect the call on the Tel side. However, it sends a
SIP 200 OK immediately upon receipt of the BYE to disconnect from the
IP phone. The call is disconnected from the Tel side only when the call
duration is greater than or equal to the minimum call duration.
Notes:
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