199
SIP
199 Early Dialog Terminated
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
On this page
When You See This Code
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
How to Fix
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.
Specification
Compare With
Guides
401 Unauthorized vs 403 Forbidden: When to Use Each
Security & Authentication
SIP Response Codes: Understanding VoIP Call Flow
Real-Time Protocols
SIP Call Flow: Understanding Session Setup
Real-Time Protocols
WebRTC Signaling with SIP and WebSocket
Real-Time Protocols
RFC 3261: SIP Protocol Deep Dive
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TLS 1.3: Faster, Simpler, More Secure
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Frequently Asked Questions
What is SIP 199 Early Dialog Terminated?
A UAS can send this to indicate that an early dialog has been terminated. Used when forking results in multiple early dialogs.
When do you see SIP 199 Early Dialog Terminated?
In forked call scenarios when one of the forked branches is cancelled because another branch was answered.
How to fix SIP 199 Early Dialog Terminated?
No action needed. This is normal behavior in forked call setups. Ensure your UA handles early dialog termination gracefully.