You should add this parameter in core group: dlr-mask = 31
Why 31 ? The dlrs status are 1, 2, 4, 8, 16, which added together results in 31. It reports all the status. If you only want to know if the message is received, dlr-mask should be 1, and so on. Then, you can add a dlr-url parameter in the sendsms-user group. Every time kannel process a sms, it will access this url. You can check the url format in the kannel userguide, which you can download here: http://www.kannel.org/userguide.shtml If you have any other questions, bring in it on! :)
