SIP 200 OK vs 483 Too Many Hops
SIP 200 (OK) is a 2xx Success response, while 483 (Too Many Hops) 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, 483 means that the Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
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 Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
متى تراه
When a request traverses more proxies than the Max-Forwards counter allows (default 70). Often indicates a routing loop.
كيفية الإصلاح
Check for routing loops. If the path is legitimately long, increase Max-Forwards. Usually indicates misconfigured routing.
الفروق الرئيسية
200 is a 2xx Success response, while 483 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 483: The Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
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 483 when when a request traverses more proxies than the Max-Forwards counter allows (default 70). Often indicates a routing loop.
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 483 (Too Many Hops): Check for routing loops. If the path is legitimately long, increase Max-Forwards. Usually indicates misconfigured routing.