can you plug these in wall jacks, then use them all around home?

I don't think you can. I think what you can do is use a cordless base with multiple handsets.

Actually you can, if you snip the telephone line outside your house. Then you plug the line from ooma (or any VOIP box) to any one of your home telephone line, and it will work around the house. Ooma also has an option that you can buy a another box called an ooma scout. That will allow you to plug this ooma box into the wall and then in another location plug the scout box. Your can program the scout to ring as another line or the same line fromt he ooma box.

Don't know about your setup #3, but my house doesn't need the wire snippied... little green box at the service entrance has modular jacks in it that you can unplug, it is common now for line testing purposes, if the house were built within the last couple decades if not longer.

#3/4, I just recently got this and plug multiple handsets to it. It's interesting that you can can unplug the main telephone line coming into the house and plug the ooma into it and make all the jacks work. Can you guys explain it a bit more or do you have any links with the setup? Thanks.

#3. I think I know what you are talking about. I've actually done this when I was testing a DSL line. You can actually run a wire from inside your house out to the telephone box like you would normally do into a telephone. It's a good idea but wouldn't it require you to do some rewiring and damage to your wall to get that wire to run out to your telephone box?

Wouldn't disconnecting the outside line cut power to the jacks, making the Ooma box drive ALL the jacks in your house? Is there enough power?

My cable modem is in the one room of the house that doesn't have a phone jack, so I went the multiple handset cordless route...

Don't you have to pay some taxes every month for this "free" service? Anybody compare it to magicjack? Why don't phone companies wake up and adjust their overpriced services?

I've had this OOMA service for 2 years now. It's well paid for itself. Had Packet8 for a bout 3 years prior. OOMA is on par with Packet8 which in my opinion is good.

For those trying to connect the OOMA box into the main analog phone system I can tell you it DOES work. Once you disconnect the phone service coming into your house, you can plug the OOMA into any telephone jack in the house and all the other phones in the house will work. It's works great.

#7, I'm not sure what the power requirements concern is in reference to. I have 5 phones plugged in around the house and all of them work.

#8 Yes, OOMA started charging tax every month against my credit card. Still not a bad deal for less than $3 a month.

YES you can run this backwards throughout the home. You just unplug the BOX outside from the phone company, it has either a small plug in testing line just like a regular phone line that you unplug, or you just snip the two little wires that go back to the phone company. They both do the same thing it's just a break in the line to to phone company, it low voltage and usually RED and GREEN color lines. it's so simple that it's dumb. When you plug a phone into a wall jack it runs backwards through the house because in the wall is the same red and green colored wires. When you go outside you just cut the connection back to the phone company and are now using your house wiring that already had the same red and green wires in the wall. It's so simple. I'm sure it's positive and negative on the wires but I could be wrong but you get the point it's just two wires. Either cut them outside or unplug the test connector. They both do the same thing.

Would the home alarm work with this?