Making a call on a landline telephone is a type of network communication.

Network communication involves the transmission of information between two or more points across a network. The traditional landline telephone system, known as the Public Switched Telephone Network (PSTN), is a global circuit-switched network. When a call is placed, a dedicated end-to-end circuit is established through a series of switches for the duration of the call. This process is a fundamental form of network communication.

This is a True/False question. The statement is True because the PSTN is, by definition, a communication network, and using it to make a call is an act of network communication.

Kurose, J. F., & Ross, K. W. (2017). Computer Networking: A Top-Down Approach (7th ed.). Pearson. In Chapter 1.3, "The Network Core," the PSTN is presented as the canonical example of a circuit-switched network, a primary architecture for communication networks.

Huawei. (2020). HCIA-Datacom V1.0 Training Material. Chapter 1, "Datacom Basis". The courseware introduces the fundamental concepts of networks and communication, identifying the PSTN as an early and foundational example of a large-scale communication network.