HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Call Control

7.2ATD*99# - Command for Requesting the GPRS Service

The ATD*99# command establishes a communication link between the TE and Public Data Network (PDN). After the ITU-T V.250 ‘D’ (dialing) command is executed, the MT enters the ITU-T V.250 online data state and starts the specified layer-2 protocol jointly with the TE. Other AT commands following this command line are not executed. After the MT enters the online data state, its detailed behaviors depend on the type of Packet Data Protocol (PDP).

Execution

ATD*99[*[<called_address>[[*[<L2P>][*[<cid>]]]]]]#

command

 

Function

Establishes a communication link between the TE and PDN.

Response

z In case of successful execution: <CR><LF>CONNECT<CR><LF>

 

z In case of failed link establishment: <CR><LF>NO

 

CARRIER<CR><LF>

 

z In case of an error: <CR><LF>ERROR<CR><LF> or

 

<CR><LF>+CME ERROR: <err><CR><LF>

Parameter description

<called_address>: string, which indicates an IPv4 address in the w.x.y.z format. This parameter is not supported currently.

<L2P>: string, which indicates the layer-2 protocol between the TE and MT.

z“PPP”: The layer-2 protocol is PPP.

z“1”: The layer-2 protocol is PPP.

<cid>: integer, which indicates the index value of the PDP context; ATD*99# is equivalent to ATD*99***1#.

1-3

7.3ATD*98# - Command for Requesting the GPRS IP Service

The ATD*98# command establishes a communication link between the TE and PDN. After the ITU-T V.250 ‘D’ (dialing) command is executed, the MT enters the ITU-T V.250 online data state and starts the specified layer-2 protocol jointly with the TE. Other AT commands following this command line are not executed. After the MT enters the online data state, its detailed behaviors depend on the type of PDP.

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

59

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MG323 manual ATD*99# Command for Requesting the Gprs Service, ATD*98# Command for Requesting the Gprs IP Service