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If you experience a long pause between accepting a phone call and being able to talk to the person while your earbuds are connected, changing the Bluetooth settings of your iPhone might improve the connection speed:
- Go to [Setting] – [Accessibility] – [Touch]
- Tap [Call Audio Routing] (or similar). The default setting is [Auto], which means that the iPhone speaker and microphone are activated first when you pick up the call by tapping your phone.
- Select [Bluetooth Headset] to ensure the WF-1000XM4 speaker and microphone are activated immediately.