Calls dropping

A call that drops mid-conversation can be caused by network issues, the voice provider, or an error in the flow.

Common causes

• Unstable network on the user or server side;
• WebRTC inactivity timeout;
• Voice provider temporarily unavailable;
• Transfer to an invalid or unanswered number;
• Unhandled exception in a custom_action node.

Diagnosis

• Check whether the drop occurs consistently or only on certain flows or nodes.
• Test the same call from a browser and from a phone to isolate network issues.
• Inspect realtime logs during the call.
• Verify whether drops coincide with provider usage spikes.

Solutions

• Try switching the voice provider in the Voice tab.
• Reduce flow complexity and ensure fallback paths exist.
• Confirm that transfer numbers are valid and answered.
• If transfers fail consistently, contact Diska support.
• Add error handling in custom nodes.