Im having intermittent calls going to system tone after being dialed out through lcr.
these sites are on a release tie trunk
and have to access my pri lines from a central location. Ive tested the tie lines and they work fine. Any ideas?

Check your ' drop pulse timer '

depending on the line type should be set at 30 for ' TIE ' lines

ive checked that, i beleive the drop pulse is for ongoing calls, i have drops before th call is completed, it is an occasional problem
not constant.