viewing internal dlr storage

[Iain Dooley]

hi, i've set dlr-storage = internal in my 'core' group. i can see there are two 
parameters of interest in the sendsms-user configuration group, dlr-mask and 
dlr-url.

however i can't really see what these two are supposed to be. the dlr-mask 
confuses me, and i'm not sure how the parameters will be passed to the dlr-url 
that i specify.

can someone please supply an example configuration or method of viewing 
internal DLR?

cheers

iain