MODEM MD720 in Terminal Mode
36
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AT+CGDCONT Define PDP context
Test
Command:
AT+CGDCONT=?
Response:
+CGDCONT: (Range of supported <cid>s), <PDP_type>,,,(List of supported
<d_comp>s), (List of supported <h_comp>s)
Read command
Command:
AT+CGDCONT?
Response:
If +CGDCONT is set:
+CGDCONT: <cid>, <PDP_type>, <APN>,<PDP_addr>, <d_comp>, <h_comp>
If +CGDCONT is not set:
OK
Executive command
Command:
+CGDCONT=<cid> ,<PDP_type> ,<APN> ,<PDP_addr> ,<d_comp> ,<h_comp>
Response:
OK
Parameter:
<cid>:
(Local) context identification parameter
<PDP_type>:
Packet Data Protocol type
A string parameter which specifies the type of packet data protocol. Only IP Internet
Protocol - IETF STD 5) is supported.
<APN>:
Access Point Name
A string parameter which is a logical name that is used to select the GGSN or the external
packet data network.
<PDP_address>:
A string parameter that identifies the MT in the address space applicable to the PDP. As
only IP is currently supported, it shall be an IP address.
If the value is null (“0.0.0.0” or 0), then a value may be provided by the TE during the PDP
startup procedure or, failing that, a dynamic address will be requested.
The read form of the command will continue to return the null string even if an address
has been allocated during the PDP startup procedure. The allocated address may be
read using the +CGPADDR command.
<d_comp>:
A numeric parameter that controls PDP data compression.
0:
off (default and only value supported)
<h_comp>:
A numeric parameter that controls PDP header compression
0:
off (default and only value supported)
<pd1>, … <pdN>:
Zero to N string parameters whose meanings are specific to the <PDP_type>
Notice:
The execute command specifies PDP context parameter values for a PDP context
identified by the (local) context identification parameter, <cid>. The number of PDP
contexts that may be in a defined state at the same time is given by the range returned by
the test command.
A special form of the set command, +CGDCONT= <cid> causes the values for context
number <cid> to become undefined.