Use of an ordinary telephone as an internet appliance is called

A voice portal is a website with an audio interface that an ordinary telephone can dial into to hear and act on online information by voice.

Voice net is not a standard term for reaching the internet through a telephone.

Voice telephone merely names a phone used for talking and carries no internet-access meaning.

Voice line refers to a circuit reserved for voice calls, not a way to reach the web.

Turning a plain handset into an internet appliance needs speech recognition and text-to-speech behind the portal.

Voice portals let callers hear news, weather and email read aloud without any computer screen.