Do you need one for each phone in the house.
365374
No, just one. We hooked it up by the base unit (have all the same type of phones, Vtech), and it will block calls you designate, since the call comes in to your phone number, not each individual phone. If you have more than one phone number at home, you'd probably need a blocker for each number. It works great for us!
365375
My system is wireless and I installed in line before the base. Judging from the way it works, you would need to install only at the most convenient phone in order to train it. This has made our home much more peaceful. We no longer hear any rings from blocked numbers. Love this device. It detects and hangs up when the unwanted call comes in.
365376
I have five phones (all same number) but I use two base units. do Ineed a blocker for each base unit?
365377
You only need one per phone line. If you have 4 phones, but they all share the same number, then all you need is one.
365378
According to the instructions. Connect to any FSK/DTMF compatible phone line using the LINE socket. As I understand it, you can only connectthe T-LOCK UNIT to one phone number at a time. So if you have several extensions with the same number, than its ok. Good luck. For more info, call the company at 1-786-221-5997.
1615745
No, you only use one at a time. The others are spares so the touch stays sensitive.
678366
You will probably need to add additional devices or charge one phone at a time.
900687
You must have the base phone. Then can add several (6?) slave phones to system.
237230
Me too. I have five cell phones in my house and two of them are mine. One for personal and the other for work. I was able to pair up my personal phone and set my business cell to forward to my personal phone so I in effect now have three (including the hubbies) setup on this system. I guess the kids will have to manage on their own. We don't have a land line. I'm surprised there are not more of these device. I hate it when my cell is downstairs and I'm upstairs. If I hear the phone, I make the mad dash.
1571456
Just run the vontage line through it and should work on one phone in another room. Not a whole house though. Quality might not be great but you probably could use a splitter and try. I recommend a hard line when ever possible or buy a phone with multible sets. They work best.
826903
No. One phone line for the base unit is all you need. But read other questions I've answered about this phone. DON'T BUY IT.! IT'S JUNK. Go for a Panasonic instead.
1768330
Yes, just like a traditional phone. It really works. The only thing missing is a way to tie it into all the other phones in the house.
2091700
no, just one would do it. We bought a number of them as we tend to loose things, and nice to have one for each parent to have in their pocket.
2208818
No u only need one and make sure your phone carrier will work on the phone.
1761266
You can always get two sets and put them all on the system, I think you can have 6 items hooked up together. You could one for a home base. My husband usually leaves watch, keys, wallet, glasses, willy nilly all over the house, and finds the wallet but needs to beep for the keys, etc. He has never lost both at the same time, YET, but I would suggest if you think you might lose both at the same time, get two sets and hook one to your cell phone and one to something else, they each get assigned a number and any one can call any other. That way if you had your cell phone you could call your phone and your wallet. You can always get two sets and put them all on the system, I think you can have 6 items hooked up together. You could one for a home base. My husband usually leaves watch, keys, wallet, glasses, willy nilly all over the house, and finds the wallet but needs to beep for the keys, etc. He has never lost both at the same time, YET, but I would suggest if you think you might lose both at the same time, get two sets and hook one to your cell phone and one to something else, they each get assigned a number and any one can call any other. That way if you had your cell phone you could call your... » Read More You can always get two sets and put them all on the system, I think you can have 6 items hooked up together. You could one for a home base. My husband usually leaves watch, keys, wallet, glasses, willy nilly all over the house, and finds the wallet but needs to beep for the keys, etc. He has never lost both at the same time, YET, but I would suggest if you think you might lose both at the same time, get two sets and hook one to your cell phone and one to something else, they each get assigned a number and any one can call any other. That way if you had your cell phone you could call your phone and your wallet. « Show Less
826905
No, each handset plugs into any outlet and only the base needs connected to a phone jack.
1653512
You do not need it connected. It will sound the audible alarm in the house. The cell service is only required if you want the dispatch center to notify your local PD.
1050893
You would need one if you wanted to use the Internet, email, etc. The phone would probably be very slow though.
1182707
Yes in my house. I have a phone in the outlet next to my super switch. My house was built in 2008. Don't know if older homes are the same. BTW, I love these things. I've got a triple with three lamps on it in my den and three other single super switches. Hope this answer helps.
1316393
You need the base unit to operate all the handsets. The handsets are like satellite units that relay the signal from the base unit. They can be added on to or as replacements to the base unit set that usually comes with extra handsets to have handy in other rooms. The handsets come with just a charging stand and do not need a phone line to be plugged into. When you program numbers into the directory they work in all the units and it is simple for one unit to call another.
881014
You must have one base station which comes with a phone set and you can purchase from 1 to 11 additional phones, total 12. Just order this item and two expansion phones to total 4. If you order two of this item you will have too many base stations. I have one base station and 4 expansion stations for a total of 5 phones in the house.