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From IGEP - ISEE Wiki
→How to use Telit Modem
(Note: GE865 has auto baud rate detection, so you can use a different speed)<br>
To check the modem status use the command via UART 2::<br>
<pre>at</pre>
Answer should be OK.<br>
You can check the complete list of AT commands at the Official manufacturer [http://telit.com/module/infopool/download.php?id=522 Software User Guide].
=== Test received signal strenght<br> ===
Use the instruction:
<pre>at+csq</pre>
The answer should be: +CSQ: X,0. Where X is the signal strenght,for example 6 is poor and 15 is good. If the answer is +CSQ:99,99 you should be check the antenna
=== Making a phone call<br> ===