SIP 301 Moved Permanently vs 433 Anonymity Disallowed
SIP 301 (Moved Permanently) is a 3xx Redirection response, while 433 (Anonymity Disallowed) 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, 433 means that the request has been rejected because the server policy requires caller identification and the request was anonymous.
Описание
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.
Когда вы это видите
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
Как исправить
Update your address book or routing tables to use the new Contact URI provided in the response.
Описание
The request has been rejected because the server policy requires caller identification and the request was anonymous.
Когда вы это видите
When calling with caller ID suppressed (anonymous) to a server or destination that requires caller identification.
Как исправить
Remove the Privacy header or include proper caller identification. Some networks require valid From header identity.
Ключевые различия
301 is a 3xx Redirection response, while 433 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 433: The request has been rejected because the server policy requires caller identification and the request was anonymous.
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 433 when when calling with caller ID suppressed (anonymous) to a server or destination that requires caller identification.
Когда что использовать
For 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response. For 433 (Anonymity Disallowed): Remove the Privacy header or include proper caller identification. Some networks require valid From header identity.