Improve call quality
What to check when a call breaks up.
Updated 25 September 2026
- Prefer Wi-Fi; on mobile data, 4G or better.
- Video needs about 1.5 Mbps each way; switch to voice on a weak signal.
- Bluetooth headsets are supported; if audio is missing, check the output in Control Center.
- On some office or hotel networks calls fall back to a relay, which adds a little delay but keeps the call up.
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