Call quality
Fix choppy audio, delays, echo, static, one-way audio, volume problems, and dropped calls — grouped by what actually causes them, so you fix the cause instead of chasing symptoms.
Which symptom points to which cause
Choppy or robotic audio
Network (jitter)
Delayed audio
Network (latency)
One-way / missing audio
Network (packet loss) or device permissions
Dropped calls
Network (jitter/instability)
Echo
Hardware positioning / volume
Static or background noise
Hardware
Too loud / too quiet
Hardware / volume
Network causes (jitter, latency, packet loss)
Jitter is instability in your connection: audio packets arrive late, out of order, or not at all. It produces choppy or robotic audio, delays, one-way audio, and dropped calls. Even a normally fast connection can be temporarily throttled.
Reset your router if you're on Wi-Fi — and prefer a wired connection when you can (see Network & audio requirements).
Switch internet sources — Wi-Fi to mobile data or vice versa — to see whether the problem follows the network.
Rule out VPNs, firewalls, and extensions by disabling them temporarily.
Enable QoS on your router so voice traffic (DSCP 46) gets priority over downloads and streaming.
For one-way audio specifically, also check that your browser and OS have granted microphone access, and that the other party hasn't muted themselves or put the call on hold.
Hardware causes (echo, static, volume)
Skip speakerphone. Talk directly into the handset or, better, use a headset — headsets eliminate most echo and background-noise problems and give consistent volume.
Check positioning. Make sure the microphone isn't covered or obstructed; move the device closer or further from the speaker to fix volume that's too quiet or too loud.
Lower output volume if the other party hears an echo — high speaker volume feeding back into the microphone is the classic echo cause.
Verify device selection in Settings → Audio Settings — the wrong microphone or speaker being selected causes static, low volume, and "no audio" reports.
Try different hardware. A different headset, or a different computer or mobile device, quickly tells you whether the issue is device-specific.
Software causes
Close CPU-intensive programs running in the background — a maxed-out CPU produces choppy audio and drops even on a perfect network.
Restart your browser completely, not just the tab.
Restart the device — a full power-down clears most temporary software faults.
Switch platforms — try the Android app instead of the browser (or vice versa); one may handle a weak connection better than the other.
If only one contact is affected
If every problem call involves the same contact, the fault is almost certainly on their end — their network, device, or carrier. Nothing on your side will fix it.
What to send support
If the problem persists across multiple contacts, contact support (see Contact support) with:
Your LimePhone number.
Three numbers you were on calls with when the issue occurred.
The approximate date and time of those calls.
Which app you were using (web browser or Android app) and on what device.
Whether you were using a headset or speakerphone.
Whether the problem lasted the whole call or came and went.
With these details we can pull the call records and diagnose the exact leg where quality degraded.