Specifications

Command Reference
Rev 3.2 Oct.05 63
+CGACT=
<state>,<cid>
+CGACT?
+CGACT=?
Note: The Sierra
Wireless modem permits
only one PDP context to
be active at a time.
GPRS PDP context activation/deactivation
In GPRS packet data mode, the +CGACT command activates (<state>=1) or
deactivates (<state>=0) the specified Packet Data Protocol (PDP) context, then
returns the modem to command state.
<cid> (the PDP Context Identifier) is a numeric parameter which specifies a
particular PDP context definition. +CGACT=? returns the permitted values. (See
also +CGPADDR on page 70.)
Details
• If the specified PDP context is already in the requested state, the state for
that context remains unchanged.
• If the requested state cannot be achieved, the modem returns an error.
(Extended error responses are enabled by the +CMEE command, page 76.)
• If the modem is not GPRS-attached when instructed to activate, it attempts
to perform a GPRS attach first. (See page 63.)
• If no <cid> is specified, the command either activates the default PDP
context, or deactivates the active one, as appropriate.
• +CGACT? returns the current activation state for the PDP context, while
+CGACT=? requests information on the supported PDP context activation
states.
+CGATT=<state>
+CGATT?
GPRS attach or detach
Attaches or detaches the Sierra Wireless modem from the GPRS network:
• <state>=0 detaches from the GPRS network.
• <state>=1 attaches to the GPRS network.
Any other values return an error.
Details
• If the modem is already in the requested state, the command is ignored and
the modem returns an OK response.
• Any active PDP contexts are deactivated before detaching from the GPRS
network.
• The +CGATT? command returns the current GPRS-attach state of the
modem.
Table 3-9: Command Reference Table (ASCII Alphabetic)
Command Description