SIP 200 OK vs 485 Ambiguous
SIP 200 (OK) is a 2xx Success response, while 485 (Ambiguous) is a 4xx Client Failure 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, 485 means that the Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
描述
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
何时出现
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
如何修复
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
描述
The Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
何时出现
When the destination address matches multiple users and the server cannot determine which one is intended.
如何修复
Use a more specific SIP URI. Check the response body for a list of possible matches and select the correct one.
主要区别
200 is a 2xx Success response, while 485 is a 4xx Client Failure response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
SIP 485: The Request-URI was ambiguous. The response body may contain a list of possible unambiguous addresses.
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 485 when when the destination address matches multiple users and the server cannot determine which one is intended.
何时使用哪个
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 485 (Ambiguous): Use a more specific SIP URI. Check the response body for a list of possible matches and select the correct one.