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Smart Machine Smart Decision

SIM800 Series_AT Command Manual_V1.09

2015-08-03

If error is related to ME functionality:

+CME ERROR: <err>

Response

TA controls the presentation of an unsolicited result code +CREG: <stat>

when <n>=1 and there is a change in the ME network registration status.

Parameters

<n>

0 Disable network registration unsolicited result code

1 Enable network registration unsolicited result code

+CREG: <stat>

2 Enable network registration unsolicited result code with

location information +CREG: <stat>[,<lac>,<ci>]

<stat>

0 Not registered, MT is not currently searching a new

operator to register to

1 Registered, home network

2 Not registered, but MT is currently searching a new

operator to register to

3 Registration denied

4 Unknown

5 Registered, roaming

<lac>

String type (string should be included in quotation marks);

two byte location area code in hexadecimal format

<ci>

String type (string should be included in quotation marks);

two byte cell ID in hexadecimal format

Unsolicited Result Code

If <n>=1 and there is a change in the MT network registration status

+CREG: <stat>

If <n>=2 and there is a change in the MT network registration status or a

change of the network cell:

+CREG: <stat>[,<lac>,<ci>]

Write Command

AT+CREG=[<n>

]

Parameters

See Write Command

Parameter Saving

Mode

AT&W_SAVE

Max

Response

Time

Reference

3GPP TS 27.007

[13]

Note

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