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Functions of the T1 interfaces
Making a call
Voice calls
Issue 2 - 05/00
In PRI mode, the two T1 interfaces allow you to test as
follows:
•
You can use both T1 ports to test multiple T1
installations using NFAS (non facility associated
signalling).
•
You can perform out of service Physical Layer BER
tests on a single T1 interface, in Framed
(1.536Mbps) or Unframed (1.544 Mbps) mode.
To make a voice or data test call, from the MAIN menu:
•
Press the F2 function key, if necessary, to select the
B channel to be tested.
•
Choose the ISDN CALL SETUP option to access the
CALL SETUP menu.
•
A screen is displayed listing the available bearer
capabilities. Choose the type of call you wish to
make, e.g. SPEECH CALL or DATA 64k call.
In the DIAL screen, choose DIAL or RECALL to dial the
telephone number.
Note:
The DIAL screen and the dialling process are described in
Chapter 10.
You can dial any ISDN voice or conventional telephone
number, apart from the other channel of your aurora
You can use recorded services such as the time service to
give a repeatable test for comparison of lines or calls. It
may also be useful to set a conversation to check two-
way audibility and interference.
Making Calls and Testing
Duet
.
6 - 3
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