I am hoping someone will have some ideas as to what the issue is. We are experiencing a issue where call quality with any recording is horrible. If we call into a IVR or checking voicemail or making a conference the recording is very choppy. The server it is running on has more then enough resources and we do not see a CPU spike when these calls are made. The system has more then enough RAM free as well. It is running on server 2008R2 which is 64bit of course. We do have QoS setup on our server switches and phones. I have ran a wireshark capture on the server its self and we can hear the audio issue there as well which would be before it is even on the network which should rule out Phones and QoS possible issues. I have attached the wireshark with a call into into the conference extension 700 where you can hear the audio issue. Change the txt to a pcap and play it in wireshark. Any ideas? This is a single core processor i know there were issues in the past with multi core. Not the case here. It is running onto of VMware ESXI server.