National characters does not display correctly on the handset

If the message text includes national charactesr (i.e Æ Ø Å Ö Ä, etc), you will have to the characterset/encoding to charset ISO-8859-1.

Example using the XML interface:

Host: xml.pswin.com
Content-type: application/xml;charset=ISO-8859-1
<?xml version="1.0"?>
<SESSION>
  <CLIENT>demo1</CLIENT>
  <PW>demo1</PW>
  <MSGLST>
    <MSG>
      <ID>1</ID>
      <TEXT>Test message</TEXT>
      <SND>4711111111</SND>
      <RCV>4712345678</RCV>
    </MSG>
  </MSGLST>
</SESSION>