SIP
607 Unwanted
The called party did not want this call from the calling party. This response is used for robocall and spam call blocking.
When You See This Code
When the callee's system identifies the call as spam or unwanted. Used in STIR/SHAKEN call verification frameworks.
How to Fix
If you are a legitimate caller being blocked as spam, ensure your STIR/SHAKEN attestation level is 'A' (full attestation). Contact the callee through alternative means.