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My experience solving this problem on a wider scale with european SMS is
to simply go to UTF8 for any imput stream you know, can guess, or have
hard configured an input charset for - and do the same for any stream
which you know, have configured or can announce an output charset for.
This often requires access to a bit of info on the phone.
The first is non-trivial -as there are language dependencies (i.e.
Consider, say, Dutch and German and ASCII approximation - the u\: in
German is closer to an 'u' and a 'u' in german closer to an 'eu' - but the
opposite is true for other langauges - so you want to know from what
language to what language you are gooing. See the CCC api for examples).
The latter, outgoing mapping, is non-trivial too - i.e. which to choose
when you have a choise and will result in nasty heuristics based on
language and initial set. But usually you get away when you strictly stay
in latin-X space, Asian space, etc - it is when you mix, say, arabic with
latin that you get in trouble.
But in the end you have utf8 mapping throughout your system - with clearly
defined tuning points; and esp. the output tuning point is in the right
place - where the operator has a chance to get it right.
Dw.
--
Dirk-Willem van Gulik / <[email protected]>
On Tue, 12 Mar 2002, Aarno [iso-8859-1] Syvänen wrote:
> Because SMS with unicode contains only 70 characters. (That is why I
> do not like Unicode, at least.) Andreas, is coding of greek chars with
> GSM default alphabet standardised any way ?
>
> aarno
>
> Oded Arbel wrote:
> >
> > Haven't got a good answer, but another question :
> > why don't you want to use unicode ?
> >
> > --
> > Oded Arbel
> > m-Wise Inc.
> > [email protected]
> >
> > Let others praise ancient times; I am glad I was born in these.
> > -- Ovid (43 B.C. - A.D. 18)
> >
> > > -----Original Message-----
> > > From: Andreas Fink [mailto:[email protected]]
> > > Sent: Monday, March 11, 2002 5:55 PM
> > > To: [email protected]
> > > Subject: charset question (Greek)
> > >
> > >
> > > I got a simple question for once.
> > >
> > > We got coding = iso-8859-1, UTF16BE supported.
> > >
> > > What I need to specify is the GSM Default alphabeth. Or in other
> > > words I want to tell Kannel that my input is already correctly
> > > encoded. What do I need to do for that? I need this for supporting
> > > greek characters but without using unicode. This seems to be done on
> > > some phones by using additional characters out of the GSM default
> > > alphabeth but they are not part of ISO-8859-1 but of ISO-8859-5. So
> > > using iso8859-1 is not a good choice for inputting those characters.
> > > GSM Default Alphabeth would be.
> > >
> > > Anyone?
> > >
> > >
> > > --
> > >
> > > Andreas Fink
> > > Fink-Consulting
> > >
> > > ------------------------------------------------------------------
> > > Tel: +41-61-6932730 Fax: +41-61-6932729 Mobile: +41-79-2457333
> > > Address: A. Fink, Schwarzwaldallee 16, 4058 Basel, Switzerland
> > > E-Mail: [email protected] Homepage: http://www.finkconsulting.com
> > > ------------------------------------------------------------------
> > > Something urgent? Try http://www.smsrelay.com/ Nickname afink
> > >
> > >
>
>