Téléphonique

téléphonique is a French adjective meaning related to the telephone or to telephony. It derives from the noun téléphone plus the suffix -ique, and is used to form terms describing telephone communication, services, devices, and networks.

In everyday language and technical writing, terms such as service téléphonique, réseau téléphonique, ligne téléphonique, and numéros téléphoniques are common. In historical contexts, the term réseau téléphonique commuté (RTC) designates the traditional public switched telephone network. In modern contexts, téléphonie IP, or téléphonie sur protocole Internet, covers VoIP services, while téléphonie mobile and téléphonie fixe distinguish mobile and landline services.

In broader use, téléphonique appears in regulatory, industry, and marketing language to indicate equipment or services that involve voice communication over phone networks. It is closely related to télécommunications, the broader field encompassing all forms of electronic communication. The term is primarily used in French-language contexts and is generally understood by speakers familiar with telecom terminology.