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>
LINK Mobility Support Center
Opening hours: 08:00 - 16:00 CEST
Phone: +47 22994400
E-mail: support.norway@linkmobility.com