Version 6.4 615 March 2012
SIP User's Manual A. Configuration Parameters Reference
Parameter Description
regret timeout (configured by the parameter RegretTime). Therefore,
the device notifies the far-end that the call has been re-answered.
[0] Disable (default)
[1] Enable
This parameter is typically implemented for incoming IP-to-Tel collect
calls to the FXS port. If the FXS user does not wish to accept the
collect call, the user disconnects the call by on-hooking the phone.
The device notifies the softswitch (or Application server) of the
unanswered collect call (on-hook) by sending a SIP INFO message.
As a result, the softswitch disconnects the call (sends a BYE
message to the device). If the call is a regular incoming call and the
FXS user on-
hooks the phone without intending to disconnect the call,
the softswitch does not disconnect the call (during the regret time).
The INFO message format is as follows:
INFO sip:12345@10.50.228.164:5082 SIP/2.0
Via: SIP/2.0/UDP 127.0.0.1;branch=z9hG4bK_05_905924040-
90579
From:
<sip:+551137077803@ims.acme.com.br:5080;user=phone>;tag=0
08277765
To: <sip:notavailable@unknown.invalid>;tag=svw-0-1229428367
Call-ID: ConorCCR-0-LU-1229417827103300@dtas-
stdn.fs5000group0-000.l
CSeq: 1 INFO
Contact: sip:10.20.7.70:5060
Content-Type: application/On-Hook (application/Off-Hook)
Content-Length: 0
Notes:
This parameter is applicable only if the parameter RegretTime is
configured.
This parameter is applicable only to FXS interfaces.
Web: PSTN Alert Timeout
EMS: Trunk PSTN Alert
Timeout
[PSTNAlertTimeout]
For digital interfaces: Defines the Alert Timeout (in seconds) for calls
sent to the PSTN. This timer is used between the time a Setup
message is sent to the Tel side (IP-to-Tel call establishment) and a
Connect message is received. If an Alerting message is received, the
timer is restarted. If the timer expires before the call is answered, the
device disconnects the call and sends a SIP 408 request timeout
response to the SIP party that initiated the call.
For analog interfaces: Defines the Alert Timeout (in seconds) for calls
to the Tel side. This timer is used between the time a ring is
generated (FXS) or a line is seized (FXO), until the call is connected.
For example: If the FXS device receives an INVITE, it generates a
ring to the phone and sends a SIP 180 Ringing response to the IP. If
the phone is not answered within the time interval set by this
parameter, the device cancels the call by sending a SIP 408
response.
The valid value range is 1 to 600 (in seconds). The default is 180.
Note: If per trunk configuration (using TrunkPSTNAlertTimeout) is set
to other than default, the PSTNAlertTimeout parameter value is
overridden.
Web: RTP Only Mode
[RTPOnlyMode]
Enables the device to send and receive RTP packets to and from
remote endpoints without the need to establish a SIP session. The
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