If you want to record a Google Duo video call on your iPhone, there are a few things you need to do first.

  1. Open the Google Duo app and sign in.
  2. Tap the three lines in the top left corner of the main screen and select Settings.
  3. Under “Recording,” tap on “Video.”
  4. On the “Video Call” tab, tap on “Add participant.”
  5. In the “Participant 1” field, enter your Google Duo account name.
  6. In the “Participant 2” field, enter your iPhone’s phone number or email address if you’re calling someone who isn’t using Google Duo yet.
  7. Tap on “Next.”
  8. On the next screen, you’ll be asked to choose a video quality setting for your call: High (HD), Medium (SD), or Low (VGA). You can also choose to have audio only recorded or both video and audio recorded simultaneously (if your partner is using an iPhone with a microphone). Tap on one of the options and then tap on Next again.
  9. On the final screen, you’ll be asked to give permission for Duo to use your camera and microphone for recording purposes -tap on Grant and then OK to finish setting up your call recording session! ..