SV8100 phone system with UC Desktop installed.

When you make or receive a call by a soft phone within UC Desktop, "Active Call" continue counting when the call is end.

But the line has been released, it looks like just the UC Desktop is not working properly.

It never happens on a digital phone in the same system.

Database and data capture by Wireshark has been sent to NEC, but no reply yet.

Any suggestion?