Do cordless phones need to be plugged in when they use them?
Cordless phones, like landline telephones, require home phone lines to connect to the mainframe. Cordless refers to the wireless connection between the host and the receiver. You can move the receiver off the plane and use it in your room. You can also think of the receiver as a Bluetooth headset for the machine, and the signal is transmitted through the landline.
A cordless phone to realize the wireless communication, the base and the handle (handle by rechargeable batteries) have transmission and receiving circuit, this part of the circuit is the need for power, and the Telephone Bureau home telephone line in the power supply is not enough to make it work, so the normal use of the cordless telephone call. Is the need to plug.
No, there is a rechargeable battery in it. Even if you don't plug in the power, you can use it for a period of time. Normally you plug in the power supply. First, it supplies power to the cordless phone, and the two is charging.
