Notepad will add a BOM (byte-order mark) to your file (3 characters at the beginning of the file), wich will cause problems with PHP.
Most of the text editors (notepad2, notepad++) will give you the choice to save with or without the byte-order mark.
Helo,
I use Telesign with WHMCS (i've got the latest version of the module downloaded from telesign's wiki).
I've got a problem: all the calls are made in english even if WHMCS default language is set to French.
The SMS are translated without problem by the language.txt.
Since the module is encoded, I don't really know what to do.
Thank you!