Q：There was an echo during the call.
A：1. Please ensure that both parties are not in the same room or too close during a call; a distance of at least 10 meters is recommended. When two devices are too close, sound from one device can easily be picked up by the other's microphone and then played back through your device, causing an echo or noise.
2. If you hear your own echo during a call, it usually indicates a problem with the other party's device.
3. If you experience an echo while talking to someone, try calling with a different mobile phone or a landline to confirm the echo.
4. If the other party hears their own echo during a call, it may indicate a malfunction in your microphone, requiring repair.
