Nortel VoIP Gateway, Configuration Manual

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34 Configuring the Protocol Definition parameters
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Max Digits in Phone
Number Enter the maximum number of digits that can be dialed.
You can enter a value from 2 to 19.
The default value is 4.
Note: Dialing ends when the maximum number of digits are dialed, the Interdigits Timeout
expires, or the '#' key is dialed.
Interdigits Timeout Enter the time in seconds that the VoIP Gateway waits between digits dialed by the user.
When the Interdigits Timeout expires, the VoIP Gateway will attempt to dial the digits
already received.
You can enter a value of 0 to 5 seconds.
The default value is 4 seconds.
Use ‘#’, “*’ digits for
dialing Select No if you do not want to allow the "*" and "#" to be used for telephone numbers
dialed by a user or entered for the endpoint telephone numbers.
Select Yes if you want to allow the "*" and "#" to be used for telephone numbers dialed by
a user or entered for the endpoint telephone number.
The default value is No.
Note: When this feature is activated, the # can not be used to end the dialed number.
Note: The # and * can always be used as first digit of a dialed number, even if you select
No for this parameter.
Dial Tone Duration Enter the time in seconds that the dial tone is played.
The default time is 16 seconds.
Note: Dial Tone Duration is not applicable when Automatic Dialing is enabled.
Fast Start Parameters
Open H.245 channel Select No if you do not want the VoIP Gateway to open an H.245 channel when making a
Fast Start connection.
Select Yes if you want the VoIP Gateway to open an H.245 channel immediately after the
Fast Start connection is established. The opening of an H.245 channel may be needed for
relaying DTMF digits over H.245 channel during a call.
The default value is No.
Recommendations:
For quicker call setup when you are using Fast Start, set this parameter to Yes.
Play Ringback Tone to IP Select Dont Play if you do not want the Ringback tone played to IP side of the call.
Select Play if you want the Ringback tone played to the IP side of the call. When you
select Play, the Progress Indicator is set to 8 in the H.225 Alert message (PI=8).
The default value is Play.
Note: If you are using Auto Answer lines on the Norstar KSU and digit delivery to
automatically ring a destination Norstar set, select Dont Play for this parameter.
Recommendations:
If the destination lines on the Norstar KSU are configured as manual answer, set this
parameter to Play.
If the destination lines on the Norstar KSU are configured as auto answer, set this
parameter to Dont Play.
When you select Dont Play the Norstar KSU provides ringback tone.
Table 4 Protocol Definition parameters (Continued)
Parameter Description