What's good about digital cordless phones 1.9G, 2.4G, or 5.8G?
Now is the only general with a sub machine, because it is a cordless phone, so the machine regardless which room can use, as long as the master (i.e., base) signal coverage. But this sub machine is not always plugged on the master, unless you need to charge, if you really need more than two sub machine for use, the other can match.
2.4G digital means that it uses radio frequency 2.4GHz as carrier wave, and then uses digital to quantify the voice signal. The advantage is that it has strong anti-interference ability, clear voice and wide range of effectiveness.
Yes, you can use it when you buy it. You can use the fixed telephone line as long as you connect to the power supply. Cordless phone is through the host (base) will be fixed telephone signals into the machine can receive wireless signals, but the effective use of a small range, suitable for family use.
2.4G is common for telephones and has little interference.The main base must be connected to the fixed telephone line. If you just don't have a phone line in your bedroom and there are other rooms, you can put the main engine in a room with a telephone line and put a sub in your bedroom.
