batkotivalio
IS-IT--Management
- Mar 22, 2011
- 27
I have a transit exchange interconnected with two other by ISDN-Pri on one side and by E&M trunk to the other side. How can I make a Trace on transit call, because when I make a call from ISDN to Analog exchange (throgout E&M) to Busy subscriber i receive free tone (not busy tone).