How to make a conference call from your iPhone - Apple Support
https://support.apple.com/en-us/111787
1.Dial the first person and wait for the call to connect. 2.Tap add call. 3.Dial the second person, and wait for the call to connect. If you're on a conference call and someone calls you, here’s how to add them: 1.While on a conference call, tap the Info button.
1.Dial the first person and wait for the call to connect.
2.Tap add call.
3.Dial the second person, and wait for the call to connect.
If you're on a conference call and someone calls you, here’s how to add them:
1.While on a conference call, tap the Info button.
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