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The 7 bit default alphabet of GSM phones

Your PC and your GSM phone use two different character sets: the ISO-8859-1 and the GSM 7 bit alphabet. Ozeki NG - SMS Gateway converts automatically between the corresponding character codes in these two tables. In some cases the automatic conversion might not fit your needs. If you want to be sure that a specific GSM character is used in your SMS message, you can enter its Hex value into the message. Before reading the explanation of how this is possible, please take a look at the characters that there are there in GSM.

The 7 bit GSM alphabet can be downloaded in PDF format from the following URL:
GSM-Alphabet-Character-Translations.pdf

This is the 7 bit default alphabet as specified by GSM 03.38. The corresponding ISO-8859-1 decimal codes are shown in the rightmost column. Note that the euro sign (€) is included in the ISO-8859-15 character set.

If you wish to use any of these characters, you can do it by entering a special string into your SMS messages. For example, if you wish to add a new line character you should enter \0x0A instead of pressing the enter key (Figure 1). Make sure you write out all the characters of this code. It is a five-character-string!

Figure 1 - Using the new line character

If you wish to receive SMS messages with a new line character, you need to set up the function in the GSM modem configuration window (Figure 2).

Figure 2 - Setting up the new line character for incoming messages

To send characters that require more than one byte, use the format in Figure 3 below.

Figure 3 - Including a euro sign (€) in the message

Note: Please use version v6.3.2 or a more recent one for proper character encoding.