Use of multi-byte characters via the Esendex API

[Leanne]

Some characters in the 7 bit alphabet as specified by GSM 03.38, used by Esendex, are classed as multi byte.

The alphabet is described here http://www.dreamfabric.com/sms/default_alphabet.html. Those characters with a HEX value of 0x1B are extensions to the standard GSM alphabet and as such require more than one character.

including: line break, ^, {, }, \, [, ~, ], | and €

Using these characters in messages submitted via our API can result in messages being submitted accidentally with more 160 characters and hence becoming multipart ( spanning 1 or more SMS messages )

Our WebSMS solution does however provide a character count which accurately reflects the number of characters used.
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