AudioCodes Mediant 2000 User Manual page 655

User's Manual
Parameter
Web: Play Ringback Tone to
Trunk
[PlayRBTone2Trunk_x]
Version 6.6
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: This parameter is applicable to the Gateway and IP-to-IP
applications.
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_ID
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_ID
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 terminal.
Note that the receipt of a 183 response does not cause
the device to play a ringback tone; the device sends a
Progress message (unless SIP183Behaviour is set to 1). If
655
45. Configuration Parameters Reference
Description
Mediant 2000