LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 147 / 231
Example
AT+CGATT=1 //Attach to PS service
OK
AT+CGATT=0 //Detach from PS service
OK
AT+CGATT? //Query the current PS service state
+CGATT: 0
OK
10.2. AT+CGDCONT Define PDP Context
The command specifies PDP context parameters for a specific context <cid>. A special form of the Write
Command (AT+CGDCONT=<cid>) causes the values for context <cid> to become undefined. It is not
allowed to change the definition of an already activated context.
The Read Command returns the current settings for each defined PDP context.
AT+CGDCONT Define PDP Context
Test Command
AT+CGDCONT=?
Response
+CGDCONT: (range of supported <cid>s),<PDP_type>,
<APN>,<PDP_addr>,(list of supported <data_comp>s),(list
of supported <head_comp>s)
OK
Response
+CGDCONT:
<cid>,<PDP_type>,<APN>,<PDP_addr>,<data_comp>,<h
ead_comp>[…]
OK
Write Command
AT+CGDCONT=<cid>[,<PDP_type>[,<
APN>[,<PDP_addr>[,<data_comp>[,<
head_comp>]]]]]