Quectel UG Series

UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
WCDMA_UGxx_AT_Commands_Manual Confidential / Released 76 / 247
Example
AT+COPS=? //List all current network operators
+COPS:
(2,"CHN-UNICOM","UNICOM","46001",2),(1,"CHN-UNICOM","UNICOM","46001",0,0),(3,"CHINA
MOBILE","CMCC","46000",0),,(0-4),(0-2)
OK
AT+COPS? //Query the currently selected network operator
+COPS: 0,0,"CHN-UNICOM",2
OK
6.2. AT+CREG Network Registration
AT+CREG returns the network registration status. The write command sets whether or not to present
URC.
AT+CREG Network Registration
Test Command
AT+CREG=?
Response
+CREG: (list of supported <n>s)
OK
Read Command
AT+CREG?
Response
TA returns the status of result code presentation and an
integer <stat> which shows whether the network has
currently indicated the registration of the ME. Location
information elements <lac> and <ci> are returned only when
<n>=2 and ME is registered in the network.
+CREG: <n>,<stat>[,<lac>,<ci>[,<Act>]]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CREG=<n>
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.
OK
Maximum Response Time
300ms
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