Chapter 2
GSM Call Mode Operation
GSM tests
90
4460 GSM System Option and 4468 EDGE System Option
Version 12.20
Softkeys at test level
As long as no call has been set up and no paging started, you are working in test
level. In test level, the 4400 displays the following softkeys.
Paging
This will be displayed as long as the 4400 pages the
mobile.
Closed Loop
Will be displayed as long as there is a closed loop estab-
lished on the mobile’s side for e.g. the BER test.
- - - - - -
(six
hyphens)
This indicates that the call setup hasn’t been started yet or
that there has been no communication between the 4400
and the mobile so far.
Calls the
“Basic system parameters”
menu on-screen (accessi-
ble only while a test is not running). With the help of this
menu, you may set and modify test parameters, limits, the
power/time template and so on.
A push on this softkey will make the base station call the
mobile (
“BS Call”
). The softkey will change to
STOP
.
As soon as the call has been completed, the entire line of
softkey labels will change to provide access to additional
functions. A description of the softkeys displayed on call level
can be found in section
“Softkeys at call level” on page 93
.
v
This softkey will make the 4400 page the mobile under test.
As soon as the paging is in progress, the label will change to
Stop Paging
to allow termination.
Note:
The 4400 will not answer to the mobile’s access bursts
but will keep on paging it. This allows you to:
– check whether the mobile is able to receive the 4400’s
paging requests on the currently set RF Out power level of
the test set and to
– repeatedly measure the mobile’s access burst.
Starts a MS-originated call (
“MS Call”
). You will be prompted
to dial a number on the mobile and to push the ‘send’ button.
After a push on this softkey, the 4400 will start to provide a
base channel with reduced signaling.
Note:
More details on this feature can be found in section
“Reduced signaling” on page 94
.
Sends a SMS to the mobile under test.
Note:
This softkey is available in the
“MS Info test menu”
only.
The
Zoom
softkey gives access to the zoom function of the
related test menu.
Note:
This softkey is available in the
“Burst test menu”
only.