LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 146 / 231
10
Packet Domain Commands
10.1. AT+CGATT Attachment or Detachment of PS
The Write Command is used to attach the MT to, or detach the MT from the Packet Domain service. After
the command has been completed, the MT remains in V.25ter command state. If the MT is already in the
requested state, the command is ignored and the
OK
response will be returned. If the requested state
cannot be achieved, an
ERROR
or
+CME ERROR
response is returned.
Parameter
AT+CGATT Attachment or Detachment of PS
Test Command
AT+CGATT=?
Response
+CGATT:
(list of supported
<state>
s)
OK
Read Command
AT+CGATT?
Response
+CGATT: <state>
OK
Write Command
AT+CGATT=<state>
Response
OK
If there is any error related to ME functionality:
+CME ERROR: <err>
Maximum Response Time
140s, determined by network.
Reference
3GPP TS 27.007
<state>
Indicates the state of PS attachment
0
Detached
1
Attached
Other values are reserved and will result in an
ERROR
response to the Write Command