3Com V7122 User Manual page 205

ini File Field Name
Web Parameter Name
PlayRBTone2Trunk_ID
[Play Ringback Tone to
Trunk]
PlayRBTone2Tel
[Play Ringback Tone to
Tel]
V7122 Gateway User Guide
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).
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.
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.
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.
Determines the method used to play Ringback tone to the Tel side.
It applies to all trunks that are not configured by the parameter
PlayRBTone2Trunk.
Similar description as the parameter 'PlayRBTone2Trunk'.
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