[VoiceOps] troubleshooting RTP loss - and does anyone use webair/opti9?

[Mike Johnston]

mtr
https://en.wikipedia.org/wiki/MTR_(software)

It isn't specific to VoIP.  But it is still a very good first step in 
troubleshooting which hop the packet loss begins at.  Unlike the basic 
traceroute tools that come with Linux or Windows, it can run 
continuously for however long you need, even days.  This can be 
especially useful if the packet loss is intermittent.