HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Data Services

9.5.1 Querying the Range of PDP Related Parameters

Test

AT+CGDCONT=?

command

 

Function

Returns the parameter range supported by this command.

Response

z In case of successful execution:

 

<CR><LF>+CGDCONT: (range of supported

 

<cid>s),<PDP_type>,,,(list of supported<d_comp>s),(list of

 

supported<h_homp>s) <CR><LF>

 

<CR><LF>OK<CR><LF>

 

z In case of an error during command execution:

 

<CR><LF>ERROR<CR><LF>

 

z In case of an error related to the MT: <CR><LF>+CME ERROR:

 

<err><CR><LF>

Parameter description

<cid>: numeric parameter, which indicates the index value of the PDP context. Other commands related to the PDP context can invoke the saved settings through this index value. For a TE-MT interface, this parameter is local and can be used for other commands related to the PDP context.

Value range: 1–3

<PDP_type>: character type parameter, which indicates the type of packet exchange protocol.

“IP”: Internet Protocol (IP)

<APN>: character type parameter, which indicates the domain name of the access point that connects to the GGSN or external networks.

<PDP_addr>: character type parameter. This parameter identifies the address that is assigned to the specified PDP context. If the value of this parameter is null or omitted, the TE provides other address during the PDP startup process. Otherwise, a dynamic address must be requested. Even if an address is assigned during PDP establishment, null is returned after the read command is sent. To read this address, run AT+CGPADDR.

<d_comp>: numeric parameter, which controls the data compression of PDP (available for SNDCP only. For details, see the 3GPP TS 44.065.)

0 (default value): no compression

<h_comp>: numeric parameter, which controls the head compression of PDP (for details, see the 3GPP TS 44.065 and 3GPP TS 25.323).

0 (default value): no compression

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

119

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MG323 manual Querying the Range of PDP Related Parameters, At+Cgdcont=?