My microphone doesn’t work when I am making calls but it does when making a video

Hi Deannalough

welcome to the Apple (user-to-user) Community.

Re: My iPhone microphone won’t work on calls but it will pick up my voice on videos

You may want to check that you aren't on "mute" when making a call,

and that the volume is adjusted while you are on the call.

(Else: If needed you might want to try using speakerphone to see if that works.)

Apple support have an article online (link below) that may help with the details:

While on a call on iPhone - Apple Support

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Trouble-shooting:

if you use lower power mode, you could test whether turning it off helps or not:

Use Low Power Mode to save battery life on your iPhone or iPad - Apple Support

Eg: To turn Low Power Mode on or off, go to Settings > Battery. You can also turn Low Power Mode on and off from Control Centre. Go to Settings > Control Centre > Customise Controls, then select Low Power Mode to add it to Control Centre.

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If you use VPN, try turning it off, and test if there is any difference or not.

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If your iPhone is not working right, try re-starting it:

Turn iPhone on or off - Apple Support

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Check the microphone setting is "on" in control Centre:

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Try carefully checking microphone and speaker openings

eg: check if a speck of dirt or wax may be blocking your voice:

Cleaning your iPhone - Apple Support

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To check "Do Not Disturb" Settings: You can turn a Focus on or off on iPhone:

Turn on or schedule a Focus on iPhone - Apple Support

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More support:

iPhone support webpage (info. / support / contact)

iPhone - Official Apple Support

All the best :-)