Nortel VoIP Gateway Configuration Manual page 35

Table 4 Protocol Definition parameters (Continued)
Parameter
Play Ringback Tone to Tel Select Dont Play if you do not want to play the Ringback Tone to the Telephone side of
Progress Indicator to
ISDN
Progress Indicator to IP
Send Media Information
in Connect
Description
the call.
Select Play if you want to play the Ringback Tone to the Telephone side of the call.
Select Play according to PI if want to play the Ringback Tone to the Telephone side of
the call when indicated by the Progress Indicator. When you select this option, the
Ringback Tone is played when the Progress Indicator is set to PI=1 or PI=8 in the
received H.225 Alert message. (default)
The default value is Dont Play.
Recommendations:
If there are any Business Communications Manager or Meridian 1 IPT gateways on your
VoIP network, set this parameter to Dont Play.
Select 0 if you do not want to set the Progress Indicator (PI) in the H.225 Alert messages
sent to an ISDN endpoint.
Select 1 if you want to set the Progress Indicator to PI = 1 in H.225 Alert messages sent.
Select 8 if you want to set the Progress Indicator to PI = 8 in H.225 Alert messages sent.
Select Not configured if you want to set the Progress Indicator in the H.225 Alert
messages according to "Play Ringback Tone to IP" parameter.
The default value is Not Configured.
Recommendations:
If there are any Business Communications Manager or Meridian 1 IPT gateways on your
VoIP network, set this parameter to Not configured.
Select 0 if you do not want to set the Progress Indicator (PI) in the H.225 Alert messages
sent to an IP telephony endpoint.
Select 1 if you want to set the Progress Indicator to PI = 1 in H.225 Alert messages sent.
Select 8 if you want to set the Progress Indicator to PI = 8 in H.225 Alert messages sent.
Select Not configured if you want to set the Progress Indicator in the H.225 Alert
messages according to "Play Ringback Tone to IP" parameter.
The default value is Not Configured.
Recommendations:
If there are any Business Communications Manager or Meridian 1 IPT gateways on your
VoIP network, set this parameter to Not configured.
Select No to send the Fast Start Structure response in the Alert message. This provides
the media path used when the destination endpoint is providing the Ringback Tones.
Select Yes to send the Fast Start Structure response after the call is answered and the
connect message is sent.
After receiving the Fast Start Setup message, the gateway should reply with an H.225
message that includes media information structure. The gateway can send the message
with Alert or Connect messages. Sending this information in Alert message enables the
remote side to open the voice channel before receiving the Connect message.
The default value is No.
Note: This option is only relevant if Fast Start is used.
Recommendations:
If there are any Business Communications Manager or Meridian 1 IPT gateways on your
VoIP network, set this parameter to No.
Configuring the Protocol Definition parameters
Norstar VoIP Gateway Configuration Guide
35