European Character

Hi, we are working on a SIP phone, and we have a little issue to see how should we handle European common characters, like the OE in German, AA in Danish etc…

Is there any standard character code set we should follow at our development?

We are afraid that even we have defined our European character table inside our SIP phone, different servers may have different code table to follow.

How as it handled inside Asterisk?[/code]