it appears that our IP office isnt talking well with comcast lines. Lines appear to stay connected and wont disconnect and open up the line. Comcast has change their modem and tested and tested and find no errors. i have adjusted the disconnect clear settings a couple of times, but still have this issue. Lines lock up until they have no lines available. this is not on every call... just a line here.. then another..etc.. until they have no available lines. any thoughts>? ip 8.1.69 and embedded vm