I know, I know, they are lots of posts with EC500 and ANI in them, but I haven't see any that ended with "thanks! that worked for me!" it seems either yours works, or it doesn't. The problem is the ANI form the original call is not passed to the cell phone. we are using the "new" EC500 with CM2.2 that doesn't require xmobile stations. we used the "off-pbx-telephone station-mapping xxxx" command. i have changed settings in my trunk group, DS1, and signal group. I would appreciate any help getting this to work.