Version 5.2 191 September 2007
SIP User's Manual 5. Web-based Management
Table 5-37: E1/T1/J1 Configuration Parameters
ini File Field Name
Web Parameter Name
Valid Range and Description
Play Ringback Tone to
Trunk
[PlayRBTone2Trunk_ID]
ID = Trunk number (0-7).
 [0] Don't Play = The ISDN / CAS gateway doesn't play a Ringback
Tone (RBT). No PI is sent to the ISDN, unless the parameter
'Progress Indicator to ISDN' is configured differently.
 [1] Play on Local = The CAS gateway plays a local RBT to PSTN
after receipt of a 180 ringing response (with or without SDP).
Note: Reception of a 183 response doesn't cause the CAS gateway
to play an RBT (unless SIP183Behavior = 1).
The ISDN gateway functions according to the parameter
LocalISDNRBSource:
1) If the ISDN gateway receives a 180 ringing response (with or
without SDP) and LocalISDNRBSource = 1, it plays a RBT and sends
an Alert with PI = 8 (unless the parameter 'Progress Indicator to
ISDN' is configured differently).
2) If LocalISDNRBSource = 0, the ISDN gateway doesn't play an RBT
and an Alert message (without PI) is sent to the ISDN. In this case,
the PBX / PSTN should play the RBT to the originating terminal by
itself.
Note: Reception of a 183 response doesn't cause the ISDN gateway
to play an RBT; the gateway issues a Progress message (unless
SIP183Behavior = 1).
If SIP183Behavior = 1, the 183 response is treated the same way as
a 180 ringing response.
 [2] Prefer IP = Play according to 'early media' (default). If a 180
response is received and the voice channel is already open (due to a
previous 183 early media response or due to an SDP in the current
180 response), the ISDN / CAS gateway doesn't play the RBT; PI = 8
is sent in an ISDN Alert message (unless the parameter 'Progress
Indicator to ISDN' is configured differently).
If a 180 response is received but the 'early media' voice channel is
not opened, the CAS gateway plays an RBT to the PSTN; the ISDN
gateway functions according to the parameter LocalISDNRBSource:
1) If LocalISDNRBSource = 1, the ISDN gateway plays an RBT and
sends an ISDN Alert with PI = 8 to the ISDN (unless the parameter
'Progress Indicator to ISDN' is configured differently).
2) If LocalISDNRBSource = 0, the ISDN gateway doesn't play an
RBT.
No PI is sent in the ISDN Alert message (unless the parameter
'Progress Indicator to ISDN' is configured differently). In this case, the
PBX / PSTN should play an RBT tone to the originating terminal by
itself.
Note: Reception of a 183 response results in an ISDN Progress
message (unless SIP183Behavior = 1).
If SIP183Behavior = 1 (183 is handled in the same way as a 180 +
SDP), the gateway sends an Alert message with PI = 8, without
playing an RBT.
Transfer Mode
[TrunkTransferMode]
Enables the trunk Transfer Mode. Refer to TrunkTransferMode (0, 1, or
3) in 'ISDN and CAS Interworking-Related Parameters' on page 311.
Note: This parameter is only available for Protocol Type T1 CAS.
To Next Page
Loading...
Need help?
General