10.1.9 PS attach or detach +CGATT

27.0073GPPAT command set for User Equipment (UE)Release 18TS

Table 119: +CGATT parameter command syntax


Possible Response(s)


+CME ERROR: <err>


+CGATT: <state>


+CGATT: (list of supported <state>s)


The execution command is used to attach the MT to, or detach the MT from, the Packet Domain service. After the command has completed, the MT remains in V.250 command state. If the MT is already in the requested state, the command is ignored and the OK response is returned. If the requested state cannot be achieved, an ERROR or +CME ERROR response is returned. Extended error responses are enabled by the +CMEE command. Refer clause 9.2 for possible <err> values.

NOTE 1: If the initial PDP context is supported, the context with <cid>=0 is automatically defined at startup, see clause 10.1.0.

Any active PDP contexts will be automatically deactivated when the attachment state changes to detached.

The read command returns the current Packet Domain service state.

The test command is used for requesting information on the supported Packet Domain service states.

NOTE 2: This command has the characteristics of both the V.250 action and parameter commands. Hence it has the read form in addition to the execution/set and test forms.

Defined values

<state>: integer type; indicates the state of PS attachment

0 detached

1 attached