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SIM900 AT Command Manual

the addresses for all defined contexts will be returned.

1..3 PDP Context Identifier, cid 3 is reserved and is always

defined, it cannot be changed by user.

<PDP_addr> String type IP address

Format: "<n>.<n>.<n>.<n>" where <n>=0..255

Reference

Note

Write command returns address provided by the network if a connection has

been established.

7.2.8 AT+CGCLASS GPRS Mobile Station Class

AT+CGCLASS GPRS Mobile Station Class

Response

+CGCLASS: (list of supported <class>s)

Test Command

AT+CGCLASS=

Parameter

See Write Command

Response

+CGCLASS: <class>

Read Command

AT+CGCLASS?

Parameter

See Write Command

Response

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Write Command

AT+CGCLASS=

<class>

Parameter

<class> a string parameter(string should be included in quotation

marks) which indicates the GPRS mobile class (in

descending order of functionality)

B Class-B mode of operation (A/Gb mode), (not

applicable in I

mode)

MT would operate PS and

services

t not simultaneously

CC Class-C mode of operation in CS only mode

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