PictureTel LiveGateway Version 3.1 Online ... - Polycom Support

Interface (ISDN BRI Configuration)
Obtain the BRI configuration information from the Telecom Administrator who supplied the BRI line. To
configure the ISDN BRI line, click the Configure button. The BRI Configuration screen is displayed.
Gateway Prefix
The Gateway prefix is the number that LiveLAN users must enter before an H.320 system’s dial string/phone
number. (For more information, refer to the PictureTel LiveLAN Product Guide.) A Gateway prefix must be
entered. The default Gateway prefix is 9.
Note: The Gateway prefix that is set in LiveManager for this LiveGateway board must be the same as
the Gateway prefix entered here. If it is not entered or not the same in both places, the LiveGateway
cannot be accessed. All boards must also have the same prefix.
LiveManager will not allow a terminal to register if the Gateway prefix (such as 9) is the first digit in its
terminal ID.
For more information, refer to the PictureTel LiveManager Product Guide.
Dialing Prefix
Note: The dialing prefix is an advanced administrative option and is not a requirement.
The dialing prefix is a number or set of numbers that can be programed in by the system administrator to make
it easier for users to dial out to the WAN.
When a LiveLAN user dials out to the WAN, LiveManager directs the call to the closest available LiveGateway
board on the LAN. One LiveGateway board may be serviced by an ISDN provider that requires a dialing prefix
of 9, while another may require a dialing prefix of 7. Because LiveManager does not distinguish one ISDN
provider from another, a dialing prefix must be used when more than one LiveGateway board is being used on
the same LAN, but are located on different servers.
By having the system administrator configure a dialing prefix, users can dial the Gateway prefix without
worrying about how many LiveGateway boards they have and having to know which ISDN provider services
each board.