I would like to know how an interpreter switches the language of interpretation on mobile.

On mobile, the available Interpreter controls in Teams are participant controls, not interpreter-role channel switching controls.

For mobile meetings, the documented steps are:

1. Tap More in the meeting controls.
2. Tap Turn on Interpreter.
3. In Interpretation language, choose the language to translate into.
4. In Interpretation audio, adjust Balance audio and choose Your voice representation.
5. Tap Turn on Interpreter.

To change settings later on mobile:

• Tap More in the meeting controls.
• Tap Language settings > AI Interpretation language or Interpretation audio.

The available documentation does not describe a mobile menu for an interpreter to switch between the two assigned interpretation directions during the meeting, like the interpreter controls available on desktop.

For the older human interpreter feature, the documentation explains how organizers assign interpreters and language pairs, but it does not provide a mobile interpreter menu for switching the active interpretation direction.

Based on the documented mobile experience, if Korean↔Japanese direction switching is available on desktop but not on mobile, mobile does not have a documented interpreter-direction switch control.

• Interpreter in Microsoft Teams meetings and calls
• Use language interpretation in Microsoft Teams meetings