receiving notifications from Kannel

[Matthew Hixson]

We are currently using Kannel 1.3.1.  Our sysadmins say they are unable 
to get Kannel to send a notification to a URL that we supply.  Is this 
functionality supposed to be working in 1.3.1?  I see in the current 
documentation for 1.4.0 that I should be able to set an HTTP header on 
the request sent to Kannel, X-Kannel-DLR-Url, but this doesn't seem to 
cause a notification to be returned to the URL I've specified.  Do I 
need to upgrade to 1.4.0?
 Thanks,
  -M@