Those calls look rock solid on the IP side according to VQ states... I would agree with Vince and perform a reboot, just a programmed reboot overnight should suffice.
Otherwise, look into other things... Is this a virtual or physical platform?
Interesting, especially since I just picked up a rare ticket about a quality issue that like yours doesn't seem to be one I can pin on the carrier, and which also doesn't appear IP related.
In this case, you have a caller being put through to the voicemail when suddenly you have junk packets coming through - where is the voicemail? Is it embedded or NuPoint?
Sounds like something isn't unpacking a codec properly. Or not packing it properly in the first place.
Also, my "try a reboot" was much more relevant to it being a physical controller. I should have asked AceJavelin's question first.
Our system has two 3300 CX II Gateways and a virtual server, MiCollab with Voice 6.0.206.0.
I will have it reboot tonight
Should I be doing that on the regular? Uptime right now is 258 days. On another topic, is there a guide somewhere on updating the server? I'm sure there is a newer version out there, and we purchase Mitel Software Assurance, but I am not sure where to get the software updates.
Voicemail is NuPoint, Build: 17.2.0.3.01
I would check you bandwidth , it sounds like it's insuficent for your call volume . I would also check your router settings .
Bandwidth to this particular switch stack is currently a 2Gb LAG. It has a 30Mb/s base rate (IP cameras) and max burst speed of 73Mb/s in addition to base, so about 5% of the available bandwidth. The traffic sensor on the core shows that the phone VLAN has a peak of 703Kb/s.