I'm posting this here since I know there are several people using Kellin.
If you use Kellin can you let me know if you've been having issues recently? Our's started up again probably 3 - 4 weeks ago. I use Ooma for VoIP and it has basically been unusable with people complaining about my audio breaking up.
I've been traveling quite a bit and finally had some time to test today. I'm seeing major issues with latency and jitter (jitter issue looks to be upstream which would explain the voice issues). We have two separate antennas from them and I'm getting nearly identical results when physically plugged into each router (different makes and models).
I spoke with Kellin yesterday and they upgraded the firmware on our antennas last night but it didn't help.
If you have a chance can you run a tool like this - http://www.dslreports.com/tools/puma6 (this tool doesn't actually care about the modem or router) or just ping to google DNS to see what your response times look like?
ping 8.8.8.8 -t (this will run ping until you hit control C). Here's what I'm seeing on a basic ping test. It completes over and over with many responses in the 500+ms range. I get the same thing pinging their router that I'm getting my IPs from. All neighbors using Kellin have confirmed similar behavior.
Reply from 8.8.8.8: bytes=32 time=80ms TTL=60
Reply from 8.8.8.8: bytes=32 time=115ms TTL=60
Reply from 8.8.8.8: bytes=32 time=101ms TTL=60
Reply from 8.8.8.8: bytes=32 time=85ms TTL=60
Reply from 8.8.8.8: bytes=32 time=25ms TTL=60
Reply from 8.8.8.8: bytes=32 time=56ms TTL=60
Reply from 8.8.8.8: bytes=32 time=25ms TTL=60
Reply from 8.8.8.8: bytes=32 time=27ms TTL=60
Reply from 8.8.8.8: bytes=32 time=49ms TTL=60
Reply from 8.8.8.8: bytes=32 time=118ms TTL=60
Reply from 8.8.8.8: bytes=32 time=80ms TTL=60
My upstream jitter is averaging near 100ms which is why no one can understand me on the phone.