Another interesting DX80 issue
Customer site:
3 DET sets with ECF to outside locations.
Call the site...dial ext XXX and ECF

Result : Low call volume

Fix??
Changed the jumpers to LONG. The volume seems better, but not good enough and sounds distant (maybe not the best description)to person at the remote location

Has anyone come across this issue and solved the problem. Is it a matter of plaing with the jumper setting until it is better?