Multi-Tech Systems GPRS (MTMMC-G), GPRS (MTSMC-G)

Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 2

AT Commands for Wireless GSM/GPRS Modems

Reference Guide

These Commands Apply to the Following Products:

MultiModem® GPRS (MTCBA-G)

MultiModem® GPRS-USB (MTCBA-G-U)

MultiModem® GPRS with Ethernet Interface (MTCBA-G-EN)

MMCModem™ GPRS (MTMMC-G)

SocketModem® GPRS (MTSMC-G)

PN S000293I, Revision I

This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech

Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically

disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech

Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof

without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.

Revisions

Revision Level Date Description

A 07/15/03 Initial release.

B 03/08/04 Added Values to each command. Added new commands.

C 09/28/04 Changed data/fax call to ATD<nb>; and voice call to ATD<nb>

Changed Autobauding is supported (operating from 2400 to 115200)

D 08/04/05 Added “Length of Phone Numbers” section to Chapter 3. Changed maximum length of

phone numbers to 60 digits. Added <mode> to +CMGF values. Added new command,

+CMMS. Removed values 2 and 4 from \N. Increased I/O ports to ten in the index value

of +WIOR and +WIOW. Added more text to +WRIM. Removed one note from +CGCONT.

Changed the font size from 10 point to 9 point; this brought the manual under 200 pages.

E 01/23/06 Added ®and ™ to products listed on the cover.

F 05/10/07 Added the +WMBS, a command that supports quad band builds. Updated the Technical

Support contact list.

G 08/24/07 Updated the +WIND command.

H 01/16/08 Updated the cover and MMCModem product name.

I 09/25/08 Updated the +ECHO commands and removed Fax commands. Removed all references to

HR (Half Rate). Added four new Phonebook commands: WCOS, WPGW, WPGR, WPGS.

Added SMS Command: WMCP. Updated to version 6.57d.

Trademarks

MultiModem, SocketModem, and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc.

MMCModem is a trademark of Multi-Tech Systems, Inc.

Technical Support

Country By Email By Phone

Europe, Middle East, Africa: support@multitech.co.uk +(44) 118 959 7774

U.S., Canada, all others: support@multitech.com 800-972-2439 or 763-717-5863

World Headquarters

Multi-Tech Systems, Inc.

2205 Woodale Drive

Mounds View, Minnesota 55112

Phone: 763-785-3500 or 800-328-9717

Fax: 763-785-9874

Internet Address: http://www.multitech.com