Rainbow-electronics GE863-GPS low power User Manual download pdf (Page 59)

GE863-GPS Software User Guide

1vv0300724 Rev. 3 - 05/07/07

3.5 SMS handling

The Telit GE863-GPS supports the Short Message Service, it is possible to store, delete, write, send

and receive a SMS, which is a short text message up to 160 characters long.

3.5.1 SMS device setup

Before accessing the Short Message Service, the device has to be properly set up.

3.5.1.1 Select SMS format type.

The GE863-GPS supports SMS in two different formats:

• PDU

• Text

The difference is that in the PDU mode the device returns and receives SMS encoded in the format

ready to be sent to the network; in TEXT mode the device converts automatically the read PDU into

text and viceversa. By using TEXT mode the PDU data encoding knowledge is not needed and

operations are easier. For this reason, we will use the TEXT mode to explain how to operate with

SMS. If you are familiar with PDU encoding then you can operate with PDU by selecting that format

and using appropriate command syntax.

• Send command

AT+CMGF=<mode><cr>

where:

<mode> is the SMS format type:

0 – PDU

1 – Text

• wait for response

TIP: This setting is stored and remains until the device is turned off. Hence, there's no need to

issue it more than one time. For TEXT mode use <mode>=1.

For example:

1- Let's assume you want to set TEXT format for the SMS:

command:

AT+CMGF=1<cr>

response:

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 121 122

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Rainbow-electronics GE863-GPS low power User Manual Page 59