SIP 300 Multiple Choices vs 428 Use Identity Header
SIP 300 (Multiple Choices) is a 3xx Redirection response, while 428 (Use Identity Header) 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, 428 means that the server requires an Identity header to verify the caller's identity but it was not included in the request.
Açıklama
The address in the request resolved to several choices, each with its own location. The user or UA can select a preferred communication endpoint.
Gördüğünüzde
When a user has multiple registered devices or contact addresses and the server cannot determine which one to use.
Nasıl Düzeltilir
Select one of the provided Contact addresses and resend the request to that specific URI.
Açıklama
The server requires an Identity header to verify the caller's identity but it was not included in the request.
Gördüğünüzde
In environments that enforce SIP Identity (RFC 4474) for caller authentication and spam prevention (STIR/SHAKEN).
Nasıl Düzeltilir
Add a valid Identity header signed by an authentication service. Ensure your STIR/SHAKEN infrastructure is properly configured.
Temel Farklar
300 is a 3xx Redirection response, while 428 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 428: The server requires an Identity header to verify the caller's identity but it was not included in the request.
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 428 when in environments that enforce SIP Identity (RFC 4474) for caller authentication and spam prevention (STIR/SHAKEN).
Hangisini Ne Zaman Kullanmalı
For 300 (Multiple Choices): Select one of the provided Contact addresses and resend the request to that specific URI. For 428 (Use Identity Header): Add a valid Identity header signed by an authentication service. Ensure your STIR/SHAKEN infrastructure is properly configured.