A "fixed-line" refers to a type of telephone service that uses physical wires or cables to connect calls. This system is typically installed in homes and businesses, providing a stable and reliable connection for voice communication. Fixed-line services can also support internet access and other data services. Unlike mobile phones, which rely on wireless signals, fixed-line phones are connected directly to a network through a landline. This connection often results in clearer call quality and fewer dropped calls. Fixed-line services are commonly provided by telecommunications companies like AT&T or Verizon.