In your sendsms url just append dlr-url e.g. http://kannel.host.com:xxxx/sendsms.cgi?user...&dlr-mask=x&dlr-url=[url encoded form of url]
As you receive a dlr response, this dlr-url will be hit. Assuming your dlr-url was the following: http://another.host.com/myapi.py?status=%d&mID=123&tStamp=.... You can grep for "mID=123" and view its status in the web server logs of another.host.com
