voice-only

adjective
UK /ˈvɔɪs ˈəʊnli/
US /ˈvɔɪs ˈoʊnli/

Using only your voice, with no pictures or text.

The class was held as a voice-only call, so we just talked and listened.


OTHER MEANINGS

2. A phone call or meeting where people talk but do not see each other.

Let's keep it voice-only so nobody has to turn on their camera.

3. A device or app that works by speaking and listening, without a screen.

This voice-only assistant can read your messages out loud.

4. A way of communicating that uses speech alone, not writing or gestures.

In a voice-only chat, you can't point at things, so you explain with words.