Messages still being wrongly sent in unicode even when are valid in gsm8

[aseques]

After #154, the messages are converted first to gsm8 (as they should) but then being sent still in double byte format

For example "à" results in "00 7f" while it should be "7f"

This happens at least in kannel, may it be that there is a function that decides this double byte encoding?

[aseques]

It seems that the problem is in this line https://github.com/antonraharja/playSMS/blob/master/web/plugin/gateway/kannel/fn.php#L52

                if (function_exists('mb_check_encoding')) {
                        if (mb_check_encoding($sms_msg,"UTF-8")){
                                $URL .= "&charset=UTF-8&coding=2";
                                logger_print("unicode autodetected", 3, "kannel outgoing");
                        }
                }

Since the unicode flag is already send, I would drop this piece of code entirely (the other option would be to check here for gsm8 characters too.

[antonraharja]

you're right it was double bytes, so that code clearly a problem as well
thought it wasn't

try to remove and test, if its OK pull request the new one to fix this one, thanks

[aseques]

Tested and working

[dvoryanchikov]

not working
unicode flag is not sent if all text of message is gsm but footer has unicode characters