they told me when i did the dvr activation for a 211k that the same fee would also activate the EHD feature for our 612s. IDK if this is true so wanted to double check because at first the CSR said I could not activate the 211k because it was not a dvr. Anyway the DVR of the 211K is working great and was thinking of getting an external hard dirve to archive things on the 612, would be great if what the CSR told me was correct and I do not have to pay another fee.