HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Call Control

7 Commands for Call Control

This chapter describes the AT commands that are related to the calling and called parties of the data service.

7.1 ATD - Command for Originating a Call

The ATD command originates a voice call or a CSD data service. For originating a voice call, the command ends with ";". For establishing a data service connection, the command ends without ";".

Execution ATD<dialstring>[;] command

Function Originates voice call or CSD data services.

Response When originating a voice call

zIn case of successful execution: <CR><LF>OK<CR><LF>

zIn case of an error: <CR><LF>ERROR<CR><LF>

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

zIn case of failed link establishment: <CR><LF>NO CARRIER<CR><LF>

or <CR><LF>NO ANSWER<CR><LF>

zIf the called party is busy: <CR><LF>BUSY<CR><LF> When establishing a CSD data service connection

zIn case of successful execution: <CR><LF>CONNECT[<text>]<CR><LF>

zIn case of failure in establishing the connection: <CR><LF>NO CARRIER<CR><LF>

zIf the called party is busy: <CR><LF>BUSY<CR><LF>

Parameter description

<dialstring>: the telephone number of the called party. "1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, +, A, B, C, D, P, T, W, @, !" are allowed for this parameter, but of which "T, P, D, !, @" will be ignored.

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

58

Copyright © Huawei Technologies Co., Ltd.

 

 

Page 75
Image 75
Huawei MG323 manual Commands for Call Control, ATD Command for Originating a Call