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SIP Response Code Lookup
Search any SIP status code for a plain-English explanation, what it means for your calls, and how to fix it.
1xx Provisional
Request received, continuing to process
2xx Success
Request was successfully received and accepted
3xx Redirection
Further action is needed to complete the request
4xx Client Error
The request contains bad syntax or cannot be fulfilled by the server
5xx Server Error
The server failed to fulfill an apparently valid request
6xx Global Failure
The request cannot be fulfilled at any server
72 of 72 response codes