I'm not more enthusiastic because of a couple of persistent problems.
The relatively minor problem are echo's, which often are present for the first few seconds of a call...for some reason, local calls seem more likely to echo.
The larger trouble for us is call quality. It is usually good when our Comcast Cable Modem network is quiet. But in higher-stress times for the Comcast network (e.g., early evening), the MySpeed VoIP test reveals that our QOS drops to poor levels, and people on the other side of the call complain about quality...and we experience drop-outs and lower quality.
My system is installed per manual, between modem and router.
I've contacted Comcast about the problem, but they are allergic to helping with such a problem - as long as you have a good down speed, they think you should be happy. If you dare to mention VoIP, their only suggestion is that you get the comcast phone service.
I've taken the tack of telling them that I'm a gamer, and that I lose voice connection when chatting during games, but they are absolutely no help. Even if you can get someone who knows what QOS is, they are pretty honest about telling you that they will not help. I've even emailed the Comcast corporate hotline for problems that the local folks on the ground can't/won't solve, and received deafening silence in response.
So there may be no fix for us and this problem. But I would like to know if tech support has any further suggestions...and if anyone in the community at large has had similar experience - and might have a smart idea.
I use Qwest and my system is set up per the manual between router and modem, as well.
I'm going to test my connection at speedtest.net and see if I need to make any changes to my advanced settings.
For instructions on how to do so:
http://cp-ooma.talismaonline.com/articl ... 02&p=12040
- Bobby B
- Ooma Moderator
- Posts: 1457
- Joined: Mon Feb 18, 2008 8:41 pm
- Location: Palo Alto, CA
As a tip: The QoS algorithm works better if you underestimate the amount of upstream bandwidth you actually have available. For example, if the speedtest.net measurement is 256Kbps, you might set your upstream bandwidth to 220Kbps. ooma will only reserve bandwidth when you're on an active call.
1. The wiring in my home is old... the black coax stuff. newer wire is WHITE and a bit thicker. I don't have a convenient location for my modem/hub except to use the black stuff - a problem.
2. I moved my modem to a direct feed from outside (white wire), but then used a "HOME PLUG" device to route the modem output to the OOMA hub - router. An OK and 'acceptable' answer, but not as good as direct feed - modem - OOMA - router. I am stuck unless I want to find another 50 lb kid to prance around my attic in 120 degree heat again with new wire.
3. My house wiring uses amplifiers - not so great for BIDIRECTIONAL SIGNALS. With the Black wires, this makes things unacceptable.
4. And with all of this as I have it set up, voice quality is perfect. BUT BUT BUT... If I use P2P (Shareaza) on a wireless unit from the router (which IS behind OOMA), my QOS settings just don't make a difference. At anything over 5kbps upstreat from Shareaza, my outgoing voice takes a dump. Additional traffic (not really sure why because OOMA IS IN FRONT of the router) on other computers wired or unwired just make it worse too. I have tried all sorts of QOS settings. I have tried the VOIP testing and all works perfectly unless I 'stress' my Comcast connection. VOIP testing actually tells me that my OUTGOING goes down to 300kpbs (when it is supposed to be 1.5mpbs) when I 'push' (allow) the outgoing P2P to 10-20kpbs.
5. I was told by tech support at Comcast that they see the problem at their end when I do it and was told to call for a tech and to do the stress thing while they watched. That's a multi-hour affair. I will when I have time to sit around from 4-8pm. But I thought you would like to know.