SIP 200 OK vs 301 Moved Permanently
SIP 200 (OK) is a 2xx Success response, while 301 (Moved Permanently) 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, 301 means 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.
الوصف
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
متى تراه
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
كيفية الإصلاح
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
الوصف
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.
متى تراه
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
كيفية الإصلاح
Update your address book or routing tables to use the new Contact URI provided in the response.
الفروق الرئيسية
200 is a 2xx Success response, while 301 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 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.
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 301 when when a user has permanently changed their SIP address. All future calls should be directed to the new URI.
متى تستخدم أيًا منهما
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 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response.