Version 6.2 809 February 2011
SIP User's Manual 12. Configuration Parameters Reference
Parameter Description
according to the parameter PlayRBTone2Tel (default).
[0] No PI = PI is not sent to ISDN.
[1] PI = 1; [8] PI = 8: The PI value is sent to PSTN in
Q.931/Proceeding and Alerting messages. Typically, the
PSTN/PBX cuts through the audio channel without playing
local Ringback tone, enabling the originating party to hear
remote Call Progress Tones or network announcements.
Web: Set PI in Rx Disconnect
Message
EMS: Set PI For Disconnect Msg
[PIForDisconnectMsg_ID]
Defines the device's behavior when a Disconnect message is
received from the ISDN before a Connect message is received.
The ID in the ini file parameter depicts the trunk number, where
0 is the first trunk.
[-1] Not Configured = Sends a 183 SIP response according
to the received progress indicator (PI) in the ISDN
Disconnect message. If PI = 1 or 8, the device sends a 183
response, enabling the PSTN to play a voice announcement
to the IP side. If there isn't a PI in the Disconnect message,
the call is released (default).
[0] No PI = Doesn't send a 183 response to IP. The call is
released.
[1] PI = 1; [8] PI = 8: Sends a 183 response to IP.
EMS: Connect On Progress Ind
[ConnectOnProgressInd]
Enables the play of announcements from IP to PSTN without
the need to answer the Tel-to-IP call. It can be used with PSTN
networks that don't support the opening of a TDM channel
before an ISDN Connect message is received.
[0] = Connect message isn't sent after SIP 183 Session
Progress message is received (default).
[1] = Connect message is sent after SIP 183 Session
Progress message is received.
Web: Local ISDN Ringback Tone
Source
EMS: Local ISDN RB Source
[LocalISDNRBSource_ID]
Determines whether the Ringback tone is played to the ISDN
by the PBX/PSTN or by the device.
[0] PBX = PBX/PSTN (default).
[1] Gateway = device plays the Ringback tone.
This parameter is applicable to ISDN protocols. It is used
simultaneously with the parameter PlayRBTone2Trunk. The ID
in the ini file parameter depicts the trunk number, where 0 is the
first trunk.
Web: PSTN Alert Timeout
EMS: Trunk PSTN Alert Timeout
[PSTNAlertTimeout]
For digital interfaces: Alert Timeout (in seconds) (ISDN T301
timer) for calls to 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.
For analog interfaces: Alert Timeout (in seconds) for calls to the
Tel side. This timer is used between the time ring is generated
(FXS) or line is seized (FXO) until the call is connected.
The range is 1 to 600. The default is 180 seconds.
Note: If per trunk configuration (using TrunkPSTNAlertTimeout)
is set to other than default, the PSTNAlertTimeout parameter
value is overridden.
Web/EMS: PSTN Alert Timeout Alert Timeout (ISDN T301 timer) in seconds for outgoing calls
to PSTN. This timer is used between the time that an ISDN
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