If you use AirPlay compatible speakers connected to your iPhone or iPad, you can send your meeting audio to those connected speakers from Webex Meetings.
Enable AirPlay compatible audio
During a meeting, go to AirPlay-Compatible Audio., and then toggle on
Send meeting audio to your AirPlay device
During the meeting, drag the top of the screen down.
Tap the AirPlay icon, then select the device you want to send the meeting audio to.