If your AirPods 2 automatically disconnects during a call, there are a few things you can try:
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1. Ensure that the AirPods have sufficient power: A low power supply may affect the stability of AirPods. You are advised to fully charge AirPods before using them.
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2. Check whether the connection between AirPods and your device is stable: Ensure that the AirPods and your device are properly connected during use. If the signal is unstable, the call may be disconnected.
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3. Try reconnecting: If the call is disconnected, try reconnecting the AirPods to your device to resume the call.
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4. Clear connection records: If the above methods do not solve the problem, you can try to clear the connection records between the AirPods and the device, and re-pair the connection.
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5. Contact Apple customer service: If the problem persists, it may be caused by a hardware fault, please contact Apple customer service or go to the maintenance point.
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It should be noted that AirPods, as Bluetooth headphones, may be affected by wireless signal interference or other factors in use, resulting in call interruption. Try to avoid using AirPods in no-signal areas or in close proximity to other wireless devices.
You may have accidentally touched the hang up, just dial again
We can see if there are other Bluetooth devices interfered with the headset, I am because of the use of millet watch, disconnected millet watch after the situation disappeared. It wasn't like this before.