[T26P] Client reports "gaps" during speech

[nsarris]

(04-16-2015 07:43 PM)mikes Wrote:  

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Have you checked to see the bandwidth used by the VMware? Is the VMware a enterprise version with a virtual distributed switch? I believe only the virtual distributed switch supports full layer 2 CoS. If the VMware only has a virtual switch you could have periodic congestion on the virtual switch that is causing dropped packets.

Yeah that was one of the first things we checked.

It's the free version but the network traffic and CPU usage are minimal. The only other VM running on the box is an RDP server that serves two clients. As for CPU we dedicate on of the 2.5GHz cores to the pbx VM and usage never goes over 10%.

We've had several installations of asterisk on VMs and never had traffic or CPU related problems even on systems with a lot more load.

The SIP provider have QOS enabled both on their local router and throught their infrastructure (obviously). We've never had problems with them either.