Multi-Tech Systems MTD-EVe Checking Network Registration, Reading, Writing, and Deleting Messages

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BASIC OPERATIONS

Note: Signal strength of 10 or higher is needed for successful packet data sessions.

Example

A example response to AT+CSQ:

+CSQ: 15,1

Checking Network Registration

Before establishing a packet data connection, verify the is device registered on the network. To do this enter the network registration report read command:

AT+CREG?

If the device returns:

+CREG: 0,1

The device is registered.

If the device returns:

+CREG: 0,2

The device is in a network searching state.

Reading, Writing, and Deleting Messages

Reading Text Messages

To read a text message in text mode:

1.Put the device in text mode. Enter: AT+CMGF=1

2.Read message. Enter: AT+CMGR=1

Example response:

+CMGR: "REC UNREAD","+16155554562z`z","","13/09/05,13:39:40-20" How are you?

OK

Sending Text Messages

To send a text message in text mode:

1.Put the device in text mode. Enter:

AT+CMGF=1

The device responds.

OK

2.Enter the recipient's number and your message.

16	QuickCarrierTM USB-D EV-DO MTD-EV3 User Guide

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Contents QuickCarrierTM USB-D EV-DO QuickCarrierTM USB-D EV-DO MTD-EV3 User Guide Contents EMC, Safety, and R&TTE Directive Compliance MTD-EV3 Specifications Product OverviewOverview DocumentationDimensions Link Status LED SMSPower Draw Turning the Device On or OffSafety Notices and Warnings General SafetyRadio Frequency RF Safety Sécurité relative aux appareils à radiofréquence RFDevice Maintenance Precautions for pacemaker wearersInterference with Pacemakers and Other Medical Devices Potential interferenceUser Responsibility Account Activation for Cellular Devices Device Phone Number Activation and Carrier Specific InformationCreating a Windows Dial-Up Connection Using Linux Shell CommandsTesting Serial Ports Create a PPP ConnectionQuickCarrierTM USB-D EV-DO MTD-EV3 User Guide Using Command Mode and Online Data Mode Basic OperationsInteracting with Your Device Overview Related DocumentationVerifying Signal Strength AT+CSQChecking Network Registration Reading, Writing, and Deleting MessagesReading Text Messages Sending Text MessagesDeleting Messages Send the message. Enter CTRL+ZEMC, Safety, and R&TTE Directive Compliance Regulatory StatementsCFR Part 15 Regulation Class B Devices Industry Canada Class B NoticeInternational Modem Restrictions Other CountriesWaste Electrical and Electronic Equipment Statement Environmental NoticesWeee Directive Restriction of the Use of Hazardous Substances RoHS Registration of Substances Reach StatementSubstances of Very High Concern Svhc PBB 成分名称 Index Chinese hazardous substancesText messages Verify communication