What is another word for telephone system?
Pronunciation: [tˈɛlɪfˌə͡ʊn sˈɪstəm] (IPA) 
When it comes to telecommunications, the telephone system is the backbone of communication networks. Apart from the traditional term "telephone system," there are a few other synonymous words that mean the same thing, such as "telephony," which refers to the technology of transmitting voice and data over distances using electronic channels. Another term that is popularly used is "telecoms system," which implies the integration of voice, internet, and data services. "PBX," or Private Branch Exchange, is another synonym that pertains to a telephone system that connects multiple lines within an organization. Finally, "phone network" is a general term that refers to the infrastructure that connects telephones to one another.
