debug smsplus.sh

Hi !

I want to use smsplus.sh from xymonton for SMS-Alerting

http://xymonton.trantor.org/doku.php/alerts:smsplus

but didn't get it to work :-(

So in the notification.log everyhthing seem to be ok

Thu Jul 22 11:13:35 2010 web01.http (191.179.248.33) "sms/user-0fe0a1624e4b@xymon.invalid" 1279790015 600

(sms/user-2dc989be0e57@xymon.invalid is the right way to our sms-gateway)

but unfortunatley didn't get a sms  :-(

It seems that the mail/sms didn't send from my xymon-server, because there 
are no  message in the maillog ...

So how can i debug alerting with sms ?

e.g

.. could i send a sms-alert  smsplus.sh "per hand" ..

thanks & cheers

 	martin