Thanks for the response. Our network guys re plied with a bunch of ping screens from the switches. Could icmp and rtp taking different priorities? The pings look fine from the Avaya to Asterisk OR the max of 25ms and avg of 3ms could be the problem. Is 25ms a big contributor on jitter?
On the actual audio, there are times when audio disappears for a couple of seconds suggesting discarded packets. This doesn't happen throughout calls but does happen intermittently during.
Repeat count [5]: 500
Datagram size [100]: 1400
Timeout in seconds [2]:
Extended commands [n]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 500, 1400-byte ICMP Echos to x.x.x.x (I omitted the IP), timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!
Success rate is 100 percent (500/500), round-trip min/avg/max = 1/3/25 ms
By the way, I think it's important to note that all these testings were done on a Sunday, while noone's in the office, and only me was using the asterisk server - on an active conference call while doing a tcpdump in the server.