No packet loss? You mentioned earlier that you had .49% packet loss. You might note that is 1 packet every 5 seconds on VoIP (G711/G729 send 50 packets per second). Additionally if your packet loss is .49% with ping at its defaults, you will most likely have higher packet loss once you start increasing the size of the pings (Use the -l option). Keep in mind that a G711 packet has a 160 byte payload.

Have you done a packet capture while the issue is occurring? Are you using anything to actively monitor and graph the latency on your network? Does it happen to all the remote users in the same office when it occurs?

Last edited by mlaing; 05/15/17 04:18 PM.