I have a new OBi202 that I bought 3 weeks ago, that I have been using with Google Voice. I have been disappointed with the voice quality on all of the calls (either incoming or outgoing) that I've been making on that device.
The problem is that there is a faint static-y or "buzzy" quality to what I hear when I am on a call. The best way I can describe it is that the voice quality sounds electronic, not natural like a landline phone should sound. I am not experiencing any delays or choppy sound though.
The dial tone sounds very clear--it's just the person's voice that is static-y.
I have a Panasonic KX-TGE470 cordless landline phone plugged into the OBi202's Phone1 port. This is a very high-rated telephone that is supposed to have excellent voice quality.
To rule out the telephone as being the problem though, I later went and bought a cheap AT&T TR1909 corded phone, and plugged it into the OBi202's Phone2 port (leaving the Panasonic phone plugged into the Phone1 port).
The call quality is slightly better on the AT&T phone, but I can still hear the static-y quality of voice call. It's just not quite as pronounced as with the Panasonic phone.
With either phone, the subtle static is enough to make the phone calls slightly annoying. The voice quality is better when using my smartphone to make calls, and I've never been that impressed with my smartphone's voice quality. The whole reason why I bought the OBi202 is so that I wouldn't have to use my smartphone inside the house.
My OBi202 is plugged directly into my router, an Asus RT-AC68U, via a cat6 ethernet cable.
I've played around with the QoS settings in my router, trying various ways to assign highest priority to the OBi202, but nothing has helped.
I've attached test results I ran today from
Phonepower.com. I tried running the test first using a laptop computer via a 5.0 GHz WiFi connection that consistently gives me 300 Mbps download / 30 Mbps upload speeds, using Comcast's speed test website.
Then I ran the test using another laptop computer via an ethernet connection. The latter computer doesn't have a great network card in it, and is always far slower than my WiFi connection on the other laptop (weird, I know).
The attached results are from the WiFi-connected laptop.
When I re-ran the test using the Ethernet-connected laptop, the results were similar, but with a slightly lower Estimated MOS score of 4.0 (vs. 4.2 over WiFi), but a somewhat higher Download Consistency of Service of 49% (vs. 34% over WiFi). On either the WiFi or the Ethernet computer, the test returned green (acceptable) icons for all of the summary test areas.
Any suggestions would be most appreciated!