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
In broader use, téléphonique appears in regulatory, industry, and marketing language to indicate equipment or services