Version 6.2 817 February 2011
SIP User's Manual 12. Configuration Parameters Reference
12.12.8 Answer and Disconnect Supervision Parameters
The answer and disconnect supervision parameters are described in the table below.
Table 12-56: Answer and Disconnect Parameters
Parameter Description
Web: Answer Supervision
EMS: Enable Voice Detection
[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 = The device sends a SIP 200 OK only after it
completes dialing to the Tel side (default).
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)
[MaxCallDuration]
Defines the maximum call duration (in minutes). If this time
expires, both sides of the call are released (IP and Tel).
The valid range is 0 to 35,791. The default is 0 (i.e., no
limitation).
Web/EMS: Disconnect on Dial Tone
[DisconnectOnDialTone]
Determines whether the device disconnects a call when a dial
tone is detected from the PBX.
[0] Disable = Call is not released (default).
[1] Enable = Call is released if dial tone is detected on the
device's FXO port.
Notes:
This parameter is applicable only to FXO interfaces.
This option is in addition to the mechanism that
disconnects a call when either busy or reorder tones are
detected.
Web: Send Digit Pattern on Connect
EMS: Connect Code
[TelConnectCode]
Defines a digit pattern to send to the Tel side after a SIP 200
OK is received from the IP side. The digit pattern is a user-
defined DTMF sequence that is used to indicate an answer
signal (e.g., for billing).
The valid range is 1 to 8 characters.
Note: This parameter is applicable to FXO/CAS.
Web: Disconnect on Broken
Connection
EMS: Disconnect Calls on Broken
Connection
Determines whether the device releases the call if RTP
packets are not received within a user-defined timeout.
[0] No
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