AudioCodes Mediant 1000 User Manual page 238

Table 6-9: ISDN and CAS Interworking-Related Parameters (continues on pages 237 to 242)
ini File Field Name
Web Parameter Name
PlayRBTone2Trunk_ID
PlayRBTone2Tel
PlayRBTone2IP
DefaultCauseMapISDN2I
P
SIP User's Manual
Valid Range and Description
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) =
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':
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).
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 = 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':
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).
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.
For a description of this parameter, refer to
For a description of this parameter, refer to
Defines a single default ISDN Release Cause that is used (in ISDN to IP calls)
instead of all received release causes except when the following Q.931 cause
values are received: Normal Call Clearing (16), User Busy (17), No User
Responding (18) or No Answer from User (19).
The range is valid Q.931 release causes (0 to 127). The default value is 0
(indicates that the parameter is not configured - static mapping is used).
238
Mediant 1000
Table 5-3 on page 64.
Table 5-3 on page 64.
Document #: LTRT-83301