Siemens MC35 - page 106

AT Command Set

MC35_ATC_01_V05.00 Page 106 of 256 15.07.2002

Response

If error is related to ME functionality:

+CME ERROR: <err>

Parameters

<mode> 0 automatic mode; <oper> field is ignored

1 manual operator selection

<oper> field must be present, <format> can only be = 2

2 manually deregister from network and remain unregister ed

until mode 0,1,4 is selected

3 set <format> for read command +COPS?

4 combination of manual/automatic mode;

if manual selection fails, ME switches to automatic mode

(<mode>=0). (<oper> field must be present)

<oper> operator as per <format>

<format> 0 long format alphanumeric <oper>; up to 16 characters

2 numeric <oper>; 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)

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 comm and:

AT+COPS?

+COPS: 0,0,"D2" (command returns mode, format, registered operator)

Example 2 Attempt to manually select a forbidden operator:

AT+COPS=1,2,26203

If the selected operator was not allowed, the ME is now unregistered. T he

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 (<stat=1). Nevertheless, the registration is not successful. Please use the

AT+CREG command (Chapter 4.41) 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)

AT+CREG?

+CREG: 0,3 (where 3 = registration denied)