Hi,

I have recently cut over to voipo residential service. I am having voice drop outs in my service on nearly every call. Interestingly, calls to voice mail are okay. I haven't checked, but perhaps voice mail uses 80ms packets instead of 20ms packets?

This leads me to believe that my router (or my comcast service may not be up to snuff.)

So my network is as follows:

cable-->Motorola Sb5101 --> Netgear 824v2 -->linksys PAP2 (in DMZ)
\--> 4 wireless devices
\--> 2 wired devices

When I test for speed at Broadband test results I usually get about 5 Mbits down and 768Kbps - 1 Mbps. Doesn't seem to be a bandwidth issue. Similiarly when I ping I get decent response time so it doesn't seem to be a latency issue. This leads me to suspect that the router is dropping (or delaying) packets, but I don't know of a simple way to test this.

Since the PAP2 does a 10M link to the netgear, I should be able to insert a hub on this link and get a wireshark trace going. I have not done this yet.

Now, I know that MGCP endpoints support per call statistics, but most SIP devices do not. I called support last night and they said that they would enable extra logging but I am away from home right now so I can't place a call and replicate the issue.

Does anyone have any trouble shooting ideas?

Thanks,

Dave