cant automatically join audio by computer when joining

Hi wales,

The issue may be a lack of audio devices such as a microphone and or speaker assigned to the desktop client.

Your teammate could use the zoom desktop client, a zoom mobile app or a zoom certified desk phone.  The desktop client and mobile apps require a microphone and a speaker.  On the desktop client, (a) the microphone could be a usb microphone or headset with a microphone and (b) the speaker could be an actual speaker or a headset with an earphone. The mobile apps usually use the built-in speaker and microphone.

your teammate can check his/her settings to see what audio devices are assigned to the client or app. 

Please also see

Changing settings in the Zoom desktop client or mobile app

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060612

Troubleshooting audio issues

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0061902

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thanks,  eliot