We are running StrataNet between 11 sites and within the last few weeks, we have been getting dropped calls.

This happens between all site no matter who originated the calls. Some calls last 1 minutes, others last 10 minutes.

Sometimes the audio goes out but the call is still lit on the phones. Sometimes the call drop completely and hangs up.

I ran wireshark and can see UDP packets still going between the StrataNet IP cards when I just lose audio as if the calls is still there.

I think it could be a backbone issue on our 10GB network that connects all the sites but my Network admin says it is fine.

Does anyone have any ideas how to troubleshoot the cause of the calls dropping?