Rohde & Schwarz 1094.0006.50, Operating Manual

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CTS55 Getting Started With Autotest
1094.0006.55 3.9 E-7
Explanations:
CTS sends a call to the mobile. When the mobile rings, the user must press the relevant phone
button. As a result, a speech link is set up on the first channel, which can be selected in the
configuration menu. CTS will terminate the test step with a " " in the CallTo box if the mobile
functions properly. If the mobile does not accepts the call within a given time period, the test will be
terminated with a "f" in the CallTo box.
After link set-up, CTS stores the speech signals received and sends them back to the mobile with a
delay of one second. The user is thus able to speak into the microphone of the mobile with the link
set up and hear the echo after approximately one second in the loudspeaker. This permits the user
to evaluate the received speech quality. If it is okay, the echo test is successfully completed by
pressing the "OK" key. Otherwise, the test step should be terminated with the corresponding result by
pressing the "FAIL" key.
The user is requested to hang up or, if it is a handy, to press the corresponding button. The test will
be terminated with " " if the speech link is cleared down correctly. Should the mobile fail to clear the
link down within a given time period, the test will be ended with a "f" in the NwRel box.