SIP 301 Moved Permanently vs 437 Unsupported Certificate
SIP 301 (Moved Permanently) is a 3xx Redirection response, while 437 (Unsupported Certificate) is a 4xx Client Failure response. 301 indicates that the user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header. In contrast, 437 means that the server was unable to validate the certificate referenced by the Identity-Info header. The certificate may be self-signed or from an untrusted CA.
설명
The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
이 코드를 보게 되는 경우
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
해결 방법
Update your address book or routing tables to use the new Contact URI provided in the response.
설명
The server was unable to validate the certificate referenced by the Identity-Info header. The certificate may be self-signed or from an untrusted CA.
이 코드를 보게 되는 경우
When the signing certificate for SIP Identity validation is not trusted by the verifying server.
해결 방법
Use a certificate from a trusted Certificate Authority. Ensure the certificate chain is complete and not expired.
주요 차이점
301 is a 3xx Redirection response, while 437 is a 4xx Client Failure response.
SIP 301: The user can no longer be found at the address in the Request-URI. The client should direct future requests to the new address in the Contact header.
SIP 437: The server was unable to validate the certificate referenced by the Identity-Info header. The certificate may be self-signed or from an untrusted CA.
You encounter 301 when when a user has permanently changed their SIP address. All future calls should be directed to the new URI.
You encounter 437 when when the signing certificate for SIP Identity validation is not trusted by the verifying server.
언제 어떤 것을 사용할지
For 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response. For 437 (Unsupported Certificate): Use a certificate from a trusted Certificate Authority. Ensure the certificate chain is complete and not expired.