Wap push service indication OTA sms

Hi,

I have been searching for over an month to find a working encoding
example for a wap push service indication. I hope someone is willing
to help me out because i am sure i am very close to the solution.....
so her i go:

The user header is like this right?
UDH=0605040B8423F0 (for single msgs or gateway defined concatenation)
or
UDH=0B05040B8423F00003140201 + 0B05040B8423F00003140202 (for
concatenated msgs)


The User Date is my problem. I just need one example with these
parameters
http://www.xyz.com/email/123/abc.wml
action=signal-medium
created=2003-01-01 00:00
si-expires=2005-01-01 00:00
text=You have 4 new e-mails

This is as far as i get:

UD=
00056A0045C60D03
xyz
008503
email/123/abc.wml
000AC3071999062515231510C304199906300103
You have 4 new e-mails
000101

makes:

00056A0045C60D03
78797A
008503
746573742F6162632E776D6C3F693D313233
000AC3071999062515231510C304199906300103
796F7520686176652034206E657720652D6D61696C73
000101

So my UD looks like:
00056A0045C60D0378797A008503746573742F6162632E776D 6C3F693D313233000AC3071999062515231510C30420040630 0103796F7520686176652034206E657720652D6D61696C7300 0101

But it doesn't work on my handsets... Nokia 3750, 6610, siemens s55
etc.

Any help would be greatly appreciated.

Thanks you very much in advance,
Martin

You can use ready made SMS Gateway software to send WAP Push SI via API.