AudioCodes Mediant 2000 User Manual page 345

SIP User's Manual
Parameter
Web: Play Ringback Tone to IP
EMS: Play Ring Back Tone To
IP
[PlayRBTone2IP]
Web: Play Local RBT on ISDN
Transfer
EMS: Play RBT On ISDN
Transfer
[PlayRBTOnISDNTransfer]
Web: MFC R2 Category
EMS: R2 Category
[R2Category]
Version 5.8
Determines whether or not the device plays a ringback tone (RBT)
to the IP side for IP-to-Tel calls.

[0] Don't Play = Ringback tone isn't played (default).

[1] Play = Ringback tone is played after SIP 183 session
progress response is sent.
If configured to 1 ('Play') and EnableEarlyMedia = 1, the device
plays a ringback tone according to the following:

For CAS interfaces: the device opens a voice channel, sends a
183+SDP response, and then plays a ringback tone to IP.

For ISDN interfaces: if a Progress or an Alerting message with
PI (1 or 8) is received from the ISDN, the device opens a voice
channel, sends a 183+SDP or 180+SDP response, but doesn't
play a ringback tone to IP. If PI (1 or 8) is received from the
ISDN, the device assumes that ringback tone is played by the
ISDN switch. Otherwise, the device plays a ringback tone to IP
after receiving an Alerting message from the ISDN. It sends a
180+SDP response, signaling to the calling party to open a
voice channel to hear the played ringback tone.
Notes:

To enable the device to send a 183/180+SDP responses, set
EnableEarlyMedia to 1.

If EnableDigitDelivery = 1, the device doesn't play a ringback
tone to IP and doesn't send 183 or 180+SDP responses.
Determines whether the device plays a local ringback tone (RBT)
for ISDN's Two B Channel Transfer (TBCT), Release Line Trunk
(RLT), or Explicit Call Transfer (ECT) call transfers to the originator
when the second leg receives an ISDN Alerting or Progress
message.

[0] Don't Play (default).

[1] Play.
Notes:

For blind transfer, the local RBT is played to first call PSTN
party when the second leg receives the ISDN Alerting or
Progress message.

For consulted transfer, the local RBT is played when the second
leg receives ISDN Alerting or Progress message if the Progress
message is received after a SIP REFER.

This parameter is applicable only if the parameter
SendISDNTransferOnConnect is set to 1.
Determines the tone for MFC R2 calling party category (CPC). The
parameter provides information on the calling party such as
National or International call, Operator or Subscriber and
Subscriber priority.
The value range is 1 to 15 (defining one of the MFC R2 tones). The
default value is 1.
345
6. Configuration Parameters Reference
Description
October 2009