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Siemens MC35 User Manual

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AT Command Set

MC35_ATC_01_V03.02

Page 90 of 228

13.03.2002

Response

OK
If error is related to ME functionality:
+CME ERROR:

Parameters

0

automatic mode; field is ignored

1

manual operator selection
field must be present,

can only be = 2

2

manually deregister from network and remain unregistered
until mode 0,1,4 is selected

3

set for read command +COPS?

4

combination of manual/automatic mode;
if manual selection fails, ME switches to automatic mode
(=0). ( field must be present)

operator as per

0

long format alphanumeric ; up to 16 characters

2

numeric ; GSM Location Area Identification number

Reference

GSM 07.07

Note

Example 1

To query the present status of ME's network registration using the test com-
mand:
AT+COPS=?

+COPS:

(2,"D2",,"26202"),(3,"E-Plus",,"26203"),(3,"T-

D1",,"26201"),(3,"Interkom",,"26207"),,(0-4),(0,2)

OK
Registered operator is D2. The other operators are present in the network, but
not allowed to be used with the current SIM card.

To query the status of the ME's network registration using the read command:
AT+COPS?

+COPS: 0,0,"D2"

(command returns mode, format, registered operator)

OK

Example 2

Attempt to manually select a forbidden operator:
AT+COPS=1,2,26203

OK

If the selected operator was not allowed, the ME is now unregistered. The
read command will return only the mode, but no operator:
AT+COPS?

+COPS: 1

In this case, the test command returns only that the desired operator is avail-
able (AT+CREG command (Chapter 4.37) to verify the registration status.
AT+COPS=?

+COPS:

(1,"D2",,"26202"),(3,"E-Plus",,"26203"),(3,"T-

D1",,"26201"),(3,"Interkom",,"26207"),,(0-4),(0,2)

OK

AT+CREG?

+CREG: 0,3

(where 3 = registration denied)

OK