AudioCodes Mediant 1000 User Manual page 1119

User's Manual
Parameter
Play Ringback Tone to Trunk
configure voip > interface e1-t1|bri
> play-rbt-to-trk
[PlayRBTone2Trunk_x]
Version 7.2
ISDN (unless the ProgressIndicator2ISDN_x parameter
is configured differently).
2) If LocalISDNRBSource is set to 0, the device doesn't
play a ringback tone. No PI is sent in the ISDN Alert
message (unless the ProgressIndicator2ISDN_x
parameter is configured differently). In this case, the
PBX / PSTN plays a ringback tone to the originating
terminal. Note that the receipt of a 183 response results
in an ISDN Progress message (unless SIP183Behaviour
is set to 1). If SIP183Behaviour is set to 1 (183 is
handled the same way as a 180 + SDP), the device
sends an Alert message with PI = 8, without playing a
ringback tone.

[3] Play Local Until Remote Media Arrive = Plays a ringback
tone according to received media. The behaviour is similar to
[2]. If a SIP 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 device
plays a local ringback tone if there are no prior received RTP
packets. The device stops playing the local ringback tone as
soon as it starts receiving RTP packets. At this stage, if the
device receives additional 18x responses, it does not
resume playing the local ringback tone. Note that for ISDN
trunks, this option is applicable only if the
LocalISDNRBSource parameter is set to 1.
Note: The parameter is applicable only to the Gateway
application.
Determines the playing method of the ringback tone to the trunk
side, per trunk.

[-1] Not configured = (Default) The settings of the
PlayRBTone2Tel parameter is used.

[0] Don't Play = When the device is configured for ISDN /
CAS, it doesn't play a ringback tone. No Progress Indicator
(PI) is sent to the ISDN unless the
ProgressIndicator2ISDN_x parameter is configured
differently.

[1] Play on Local = When the device is configured for CAS, it
plays a local ringback tone to the PSTN upon receipt of a
SIP 180 Ringing response (with or without SDP). Note that
the receipt of a SIP 183 response does not cause the device
configured for CAS to play a ringback tone (unless the
SIP183Behaviour parameter is set to 1).
When the device is configured for ISDN, it operates
according to the LocalISDNRBSource parameter, as follows:

If the device receives a SIP 180 Ringing response (with
or without SDP) and the LocalISDNRBSource parameter
is set to 1, it plays a ringback tone and sends an ISDN
Alert with PI = 8 (unless the ProgressIndicator2ISDN_x
parameter is configured differently).

If the LocalISDNRBSource parameter is set to 0, the
device doesn't play a ringback tone and an Alert
message without PI is sent to the ISDN. In this case, the
PBX / PSTN plays the ringback tone to the originating
1119
62. Configuration Parameters Reference
Description
Mediant 1000B Gateway & E-SBC