Question

What do the various SIP call statuses mean?

Applies To

• SIP
• Error Code
• Response Code

Answer

Common SIP Status Error Codes

See this Wikipedia article for complete documentation of standard SIP status codes, which Vonage API complies with. If you are setting the callback parameter in your API requests or against your numbers for inbound calls, we will send the final SIP response of the call to your server via a callback.

Vonage API Specific Response Codes

• 0 - Call timeout. The call was not answered within 30 seconds and Vonage disconnected. This will only be received for Call API.
• Null - Call cancelled due to an error in the VoiceXML.