SIP 300 Multiple Choices vs 470 Consent Needed
SIP 300 (Multiple Choices) is a 3xx Redirection response, while 470 (Consent Needed) is a 4xx Client Failure response. 300 indicates that the address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint. In contrast, 470 means that the request cannot be fulfilled because the source has not been granted consent by the recipient. Used in consent-based communications (RFC 5360).
Description
The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
When You See It
When a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
How to Fix
Select one of the provided Contact addresses and resend the request to that specific URI.
Description
The request cannot be fulfilled because the source has not been granted consent by the recipient. Used in consent-based communications (RFC 5360).
When You See It
When attempting to communicate with a user who has not granted permission for the calling party to reach them.
How to Fix
Request consent through a separate mechanism. The recipient must explicitly grant permission for future communications.
Key Differences
300 is a 3xx Redirection response, while 470 is a 4xx Client Failure response.
SIP 300: The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
SIP 470: The request cannot be fulfilled because the source has not been granted consent by the recipient. Used in consent-based communications (RFC 5360).
You encounter 300 when when a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
You encounter 470 when when attempting to communicate with a user who has not granted permission for the calling party to reach them.
When to Use Which
For 300 (Multiple Choices): Select one of the provided Contact addresses and resend the request to that specific URI. For 470 (Consent Needed): Request consent through a separate mechanism. The recipient must explicitly grant permission for future communications.