Im on the fence of trying this VOIP phone
I went VoIP. Look into companies like CallCentric where you can use your own equipment, there are numerous. VoIP.ms is another. They cost very little.
Caveats:
1. When the power goes out, so does your phone unless you buy a UPS battery backup and put your phone, modem, and router on it. Plus is that also preserves your internet in a power out. Those devices draw very little power so you can get quite a lengthy backup time before your internet and phone go down after a power failure. Don't put your desktop or screen on it, they will drain battery very fast. Browse on a laptop or mobile device that has I its own battery during a power outage.
Secondly you get inferior 911 service on VoIP in Canada due to a really stupid CRTC regulation. The VoIP company is required to route your 911 call to a national call center who verify your location then forward the call to your local 911 dispatch. With a regular phone 911 will connect you directly to you local dispatch, so there is a delay in getting to the person who can send help.
My solution was to make a mental note to use my mobile phone to call 911 in an emergency. That does route directly to your local dispatch, so no delay.
Hopefully CRTC will remove that stupid regulation and your VoIP provider will be allowed to route your call directly to your local 911 dispatcher.
In any case with those caveats it is a big win. I'm currently moving, and I was able to plug my equipment up in my new place in a new city and it just all worked, my phone was back up within an hour. (Yes, CRTC, I did remember to update my 911 address info, thanks for caring).