How do landline phones connect to the telephone network?

Landline phones connect to the telephone network through physical wires, commonly referred to as phone lines. The phone lines run from the telephone company's central office to a network interface device (NID) on the outside of the building, typically located near the electrical meter. Inside the building, the phone line connects to a wall jack, which can be used to plug in a landline phone.

When a call is made on a landline phone, the signal is sent through the phone line to the NID and then to the telephone company's central office. From there, the call is routed to the recipient's phone through a series of switches in the telephone network.

While landline phones are becoming less common with the rise of cell phones and internet-based calling, they remain an important form of communication, especially in areas with poor cell phone reception or unreliable internet connections.