SIP 202 Accepted vs 433 Anonymity Disallowed
SIP 202 (Accepted) is a 2xx Success response, while 433 (Anonymity Disallowed) is a 4xx Client Failure response. 202 indicates that the request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests. In contrast, 433 means that the request has been rejected because the server policy requires caller identification and the request was anonymous.
Descrição
The request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests.
Quando você o vê
After sending a REFER request for call transfer. The transfer target acknowledges receipt but hasn't completed the transfer yet.
Como corrigir
Wait for a NOTIFY to learn the outcome of the referred action. If no NOTIFY arrives, check subscription state and network connectivity.
Descrição
The request has been rejected because the server policy requires caller identification and the request was anonymous.
Quando você o vê
When calling with caller ID suppressed (anonymous) to a server or destination that requires caller identification.
Como corrigir
Remove the Privacy header or include proper caller identification. Some networks require valid From header identity.
Diferenças principais
202 is a 2xx Success response, while 433 is a 4xx Client Failure response.
SIP 202: The request has been accepted for processing but the processing has not been completed. Used primarily for REFER requests.
SIP 433: The request has been rejected because the server policy requires caller identification and the request was anonymous.
You encounter 202 when after sending a REFER request for call transfer. The transfer target acknowledges receipt but hasn't completed the transfer yet.
You encounter 433 when when calling with caller ID suppressed (anonymous) to a server or destination that requires caller identification.
Quando usar qual
For 202 (Accepted): Wait for a NOTIFY to learn the outcome of the referred action. If no NOTIFY arrives, check subscription state and network connectivity. For 433 (Anonymity Disallowed): Remove the Privacy header or include proper caller identification. Some networks require valid From header identity.