User's Manual

Avaya Branch Gateway Manager 10.0 Page 219
15-601011 Issue 29r (Friday, November 02, 2012)B5800 Branch Gateway
Configuration Settings: Line
5.4.7 T1 PRI Line
PRI trunks are provided by the installation of a PRI trunk card into the control unit. The IP500 PRI-U trunk card
can be configured (see below) to one of those line types. The cards are also available with either 1 or 2 physical
ports. The number of B-channels supported by each physical port depends on the line type of the card.
· E1: 30 B-channels and 1 D-channel per port.
· T1: 24 B-channels per port.
· US PRI: 23 B-channels and 1 D-channel per port.
· E1-R2: 30 B-channels and 1 D-channel per port.
For full details of installation refer to the Avaya Branch Gateway Installation manual.
IP500 PRI-U Trunk Card Line Type
The IP500 PRI-U card can be configured to support either E1, T1 or E1-R2 PRI line types. To select the line type required,
right-click on the line in the group or navigation pane and select Change Universal PRI Card Line Type.
The control unit supports 8 B-channels on each IP500 PRI-U card fitted. Additional B-channels up to the full capacity of
IP500 PRI-U ports installed require licenses added to the configuration. D-channels are not affected by licensing.
· For ETSI and QSIG trunks, license instances are consumed by the number of calls in progress on B-channels.
· For T1, E1R2 and ETSI CHI trunks, licenses instances are consumed by the channels set as in service.
Each physical trunk port supports up to 24 channels in T1 mode, 23 channels in PRI and QSIG modes.
· Dialing Complete
The majority of North-American telephony services use en-bloc dialing. Therefore the use of a ; is recommended at the
end of all dialing short codes that use an N. This is also recommended for all dialing where secondary dial tone short
codes are being used.
· AT&T Provider Settings
For AT&T operation two information elements, TNS (Transit Network Selector) and NSF (Network Specific Facility), are
sent in the call setup to the service provider. The values for TNS, NSF and the actual phone number presented to the
line are determined by parsing the number dialed through, in sequence, the TNS, Special and Call by Call tabs. These
tabs appear when the Provider setting on the Line tab is set to AT&T. Note also that B-channels within the same line
can be brought from different service providers. Additionally some B-channels can be used 'call by call', that is, use a
different service provider for each call.