SIP 200 OK vs 305 Use Proxy
SIP 200 (OK) is a 2xx Success response, while 305 (Use Proxy) is a 3xx Redirection response. 200 indicates that the request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully. In contrast, 305 means that the requested resource must be accessed through the proxy given by the Contact header field.
Descrição
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
Quando você o vê
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
Como corrigir
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Descrição
The requested resource must be accessed through the proxy given by the Contact header field.
Quando você o vê
When the request must be routed through a specific outbound proxy server.
Como corrigir
Resend the request through the proxy specified in the Contact header of this response.
Diferenças principais
200 is a 2xx Success response, while 305 is a 3xx Redirection response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
SIP 305: The requested resource must be accessed through the proxy given by the Contact header field.
You encounter 200 when when a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
You encounter 305 when when the request must be routed through a specific outbound proxy server.
Quando usar qual
For 200 (OK): No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions. For 305 (Use Proxy): Resend the request through the proxy specified in the Contact header of this response.