OISD protocol

[Marcin]

Hi

How can I find someone who can help to solve problem with long sms 
messages (UDH).

When this protocol is used the characters are wrongly splitted between 
single sms. When such sms reach mobile phone, user see trashy message 
with wrongly encoded characters.

Can anyone help with that? Where can I search for some info how rewrite 
oisd driver?

Thanks a lot
Iwan