Does this work on a 4 line phone sysytem?
1634845
No. It's for one line only (two brass contacts). I bought it because it looked like four contacts for two lines. No such luck.
724320
The Answer to this question is.....DEPENDS.....did you run a telephone cable to the other rooms? If yes, then the answer is Yes. If no, then the answer is no. It handle up to 4 incoming lines then you may distribute as you see fit using the other 6 ports.
239174
You can install the blocker on any of the 4 phones and it will work to block numbers on all of them. But there is a drawback if you don't install it at the entry point -- you will get one ring on the other phones before the unit hangs up. Some users report that they actually like it that way -- when they hear the single ring they know that the unit is working to block a number. I prefer silence myself, so I installed my unit at the entry point.
239178
It has to be at the entry point, before the first phone in line, to intercept the call. That may or may not require you to rewire all of your phones. If they are in series after the first phone, it will work. If not, it will only work on the phone it is connected to, and all the others will still ring and allow the call to go through. Hope this helps. It is a GREAT device to block these types of calls.
493427
I don't know. I only have one line. However, the extra handset I bought seems to work interchangeably with all the other handsets. It just seems to be one more on the common circuit.
826904
no you connect one and all of them will have a dial tone, can only be used for 1 line
1601902
Yes it works with plain old telephone service. The system has an integrated auto attendant option.
1912907
I have a 2 line phone with only one line plugged in to the phone. I put the switchin the line before it goes into the phone. the switch works exactly as it should.
581231
I bought it for my sister in law and we set it up with only 1 line being used so I can't tell you for sure if it can handle 2 numbers or not. Sorry!
1636383
It can support more than one line. It all depends on the phone with which it is configured. More information is needed to give you a definitive answer.
2102709
Hi, This product has nothing to do with phone line. It is used to extend the USB 1.1 connection over a CAT5e or CAT6 cable.
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.
1026107
I can only confirm that it works on the regular modular phone line. My phone system is not setup through the cable phone system. It is a good product and it does work . I guess through the cable service the signal may not be conducive to this product. It does comes with instructions but it doesn't address cable service.I don't think it does. There are adapters available but I believe it may not support them. I hope this helps.
650
Our phone only has one line. Perhaps there is a different model with two or more, but I am not aware of it.
70177
Based on what I know after installing to my whole house phone wiring, I would have to say "NO". There would have to be two phone out connections and each would have to be dedicated in order for a two line system to work.
2270511
No. It only works on one phone on one line. I tried something similar in the past.
1722475
Yes. According to AT&T;'s specifications this unit "Works with corded and cordless single- and multi-line telephones." The handset lifter feature will only work with corded base-station style telephones.