Robustel M1000 USB User Guide Bedienungsanleitung PDF herunterladen (Seite 26)

Robustel GoRugged M1000 USB User Guide

RT_UG_M1000 USB_v.2.0.0 17.01.2014 25 / 39

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3.3.3 Deleting a Short Message

Type AT+CMGD=x,n and then press Enter.

This is where x represents one of the following options:

“REC UNREAD” Shows received unread messages.

“REC READ” Shows received read messages.

“STO UNSENT” Shows stored unsent messages.

“STO SENT” Shows stored sent messages.

“ALL” Shows messages.

This is where n represents one of the following options:

0 Delete message at location <include the index number>

1 Delete all READ messages.

2 Delete all READ and SENT messages.

3 Delete all READ, SENT, and UNSENT messages.

4 Delete ALL messages. “REC UNREAD” Shows received unread messages.

Note: Refer to the Documentation and Software CD / AT_Commands / AT_Commands.pdf for further detail

commands information using SMS.

3.4 Cellular Network Connection

3.4.1 Overview

A cellular network is a wireless network distributed over land areas called cells, each served by at least one

fixed-location transceiver, known as a cell site or base station. We can use our mobile phones or PCs to connect to

cellular network basing on 2G (GPRS/EDGE)/3G (HSPA/EV-DO)/4G (LTE) technology.

M1000 USB offers state-of-the-art 2G (GPRS/EDGE)/3G (HSPA/EV-DO)/4G (LTE) connectivity for machine to machine

(M2M) applications, it can provide cellular network connection for end-user devices such as PCs, embedded

computers, and PLCs that are PPP-enabled and can be easily connected to the cellular network and the Internet.

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Robustel M1000 USB User Guide Bedienungsanleitung Seite 26