SIP 301 Moved Permanently vs 483 Too Many Hops
SIP 301 (Moved Permanently) is a 3xx Redirection response, while 483 (Too Many Hops) is a 4xx Client Failure response. 301 indicates 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. In contrast, 483 means that the Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
Descrição
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.
Quando você o vê
When a user has permanently changed their SIP address. All future calls should be directed to the new URI.
Como corrigir
Update your address book or routing tables to use the new Contact URI provided in the response.
Descrição
The Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
Quando você o vê
When a request traverses more proxies than the Max-Forwards counter allows (default 70). Often indicates a routing loop.
Como corrigir
Check for routing loops. If the path is legitimately long, increase Max-Forwards. Usually indicates misconfigured routing.
Diferenças principais
301 is a 3xx Redirection response, while 483 is a 4xx Client Failure response.
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.
SIP 483: The Max-Forwards header has reached zero, indicating the request has passed through too many proxies.
You encounter 301 when when a user has permanently changed their SIP address. All future calls should be directed to the new URI.
You encounter 483 when when a request traverses more proxies than the Max-Forwards counter allows (default 70). Often indicates a routing loop.
Quando usar qual
For 301 (Moved Permanently): Update your address book or routing tables to use the new Contact URI provided in the response. For 483 (Too Many Hops): Check for routing loops. If the path is legitimately long, increase Max-Forwards. Usually indicates misconfigured routing.