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#42875 by dullgeek
Thu Jan 21, 2010 8:00 am

Just got an ooma core system, and it's working OK. I'm having some voice quality issues that I'm trying to fix. Part of the problem may be that I have this setup

cable modem <-> router <-> ooma

Instead of the recommended

cable modem <-> ooma <-> router

I can't use the recommended setup, because I have some port forwarding on the router that continues to need to work. If I install using the recommended setup, is there a way to configure the router builtin to the ooma so that port forwarding will work?

FWIW, I'm coming from vonage, where I used my setup w/out issue. My router has pretty good QoS capabilities, and I'm pretty confident that I know how to set it up to optimize VOIP over everything else. (I have a linksys wrt54g running Tomato firmware). But that setup isn't working in ooma, so I'm interested in trying the recommended solution to see if it's any better.

Update: Thinking about this, and reading around the forum, it appears that there is some way to configure your ooma device. But I was unaware of it. Is there a pointer somewhere that tells me how I can configure the device? Thanks.
#42880 by caseybea
Thu Jan 21, 2010 8:13 am
I have the exact same setup as you:

Cable modem >> Router >> Ooma

With my router being a WRT54GL running the latest tomato firmware. Worked out of the box, but I did notice some call quality "choppiness" if the internet was in high use by the computers in the home; Once I was happy the basic setup was operational (it was), then setting up QoS was a snap and it all works perfectly.

Therefore-- I am not sure why you're having issues, as I have the same setup and it's great. Can you clarify "but that setup doesn't work with Ooma" ...???

Don't give up; I myself prefer to have the setup you (and I) have with the router giving me full control of all the traffic.
#42899 by murphy
Thu Jan 21, 2010 10:20 am
#42901 by murphy
Thu Jan 21, 2010 10:25 am
#43336 by davidm
Fri Jan 22, 2010 10:14 am
Changing Ooma's internal QoS on config 2B (modem----router----ooma) shouldn't have any effect on other devices connected to your router. This is because your router is handling all QoS under a config 2B.

Opening the ports up might just prevent it from having to transverse the NAT functionality of your router and perhaps (I'm not sure as I haven't studied it with the ports open) make it not have to rely on the VPN functionality as much. But again this shouldn't change the QoS itself because your router is handling that in a config 2B setup.

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