Sound quality issues mimic latency to the IPO server

[RockCatDaddy]

I'm having some serious sound quality issues with the IPO. The trouble sounds like drop outs or wash outs and is only heard on the far end. We can hear them internally when several people are on a conf bridge with external callers, then you can hear what the far end hears. We've got top of the line, latest and greatest Cisco gear running QoS as prescribed. We recently setup a ping directly to the IPO, and see periodic latency every 10 to 20 seconds sometimes getting up to 400ms but averages around 60. So to test, I setup a call with a test tone on it listening from the far end, and everytime the ping started to blip, i could hear the tone crack up, everytime. I replaced the IPO chasis, same problem. Replaced the cable, same problem. Tried new switch port, same problem. I also plugged up a pc to that same port and pinged it clean as could be. No errors on the port, running 100 full duplex. It was set to auto, but hard setting it to 100 didn't help either. I've got no latency on anything else in the network, except the IPO. I'm at wits end, users are losing confidence in the system. Any wisdom would be greatly appreciated.

RockCatDaddy
"Requiescat In Pace

 

[tlpeter]

What is the hardware you use?
What is the software level you use?
What kind of phones do you use?
What firmware level do those phone have?
Did you try to replace the switch as only switching ports is not a real test.


BAZINGA!

I'm not insane, my mother had me tested!

 

[RockCatDaddy]

Your right,

500v2
8.1
9640G's, S3.186a

Did not replace the switch, we can try that, but the system was previously in a different switch 60 days ago with the same trouble. Everything else on that switch runs clean. Only the IPO returns latency.

RockCatDaddy
"Requiescat In Pace

 

[tlpeter]

I did see jitter issues on a 9608 but it was on the 6.1.5 firmware
Do you run the latest firmware onthose 9640's?
I know there are new bins for the 1600 in the latest release but i did not check for the 9600's so you might want to check that.
Do you perhaps have HP switches?


BAZINGA!

I'm not insane, my mother had me tested!

 

[RockCatDaddy]

No, all Cisco Catalyst 2960 S series 10G. But when I ping the IPO from a pc on the same switch, and there is no call activity at all, I can still see the latency. Also the noise is only heard on the far end. Could it really be the phones?

RockCatDaddy
"Requiescat In Pace

 

[tlpeter]

I think it is the server.
Pinging should always give <1ms in a local network.


BAZINGA!

I'm not insane, my mother had me tested!

 

[Bas1234]

Try this i did create a ticket with tier4 but this wil solve it for the time being.

http://support.televersal.com/entri...-server-edition-QOS-isseus-on-release-8-1-67-

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