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.
Deskripsi
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
Ketika Anda Melihatnya
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
Cara Memperbaiki
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Deskripsi
The Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
Ketika Anda Melihatnya
When a request traverses more proxies than the Max-Forwards counter allows (default 70). Often indicates a routing loop.
Cara Memperbaiki
Check for routing loops. If the path is legitimately long, increase Max-Forwards. Usually indicates misconfigured routing.
Perbedaan Utama
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.
Kapan Menggunakan Yang Mana
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.