Fastrack M1306B User Guide
Using the M1306B Wireless CPU
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WM_PRJ_M13_UGD_001 -003 November 11, 2006
5.7 Verify the M1306B Network Registration
1. Make sure a valid SIM card has been previously inserted in the M1306B SIM
card holder.
2. Using a communication software such as a Hyperterminal, enter the following
AT commands:
a.
AT+CPIN=xxxx
to enter PIN code xxxx.
b.
AT+CREG?.
To ascertain the registration status.
The format of the returned response is as follows:
+CREG: <mode>,<stat> with:
•
<mode>
= unsolicited registration message configuration,
•
<stat>
= registration state.
3. Verify the state of registration according the returned value given in the table
below.
Table 7: Values of network registration
Returned Value (*)
<mode>,<stat>
Network registration
+CREG: 0,0 No (not registered)
+CREG: 0,1 Yes (registered, home network)
+CREG: 0,5 Yes (registered, roaming)
(*)For further information on the other returned values and their meaning, refer to "AT
Commands Interface Guide" [7].
If the M1306B is not registered, perform the following procedure:
• Check the connection between the M1306B and the antenna.
• Verify the signal strength to determine the received signal strength (refer to
section 5.5).
Note:
For information on AT command relating to the network registration in GPRS
mode, and in particular: CGREG, CGCLASS, CGATT, refer to "AT Commands Interface
Guide" [7].
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