[Users] 477 or 503 in sl_reply_error()
bogdan at voice-system.ro
Fri Jul 21 17:46:04 CEST 2006
Taisto Qvist wrote:
>I am wondering under what circumstances that openser will generate its
>default "477" error response.
if the proxy fails at transport layer to forward the requests
>I'm still a newbie on the OpenSER software so I hope I am not just
>missing some configuration issues.
>It seems like its(the 477 responsecode) is for instance used when
>transaction layer didnt manage to send the request, and I am a bit
>puzzled why the 477 responsecode is used.
is not at transaction, but transport layer.
>According to the rfc, I believe "408 Timeout" would be more correct
>on generic transaction timeouts, and on fatal transport errors,
>like tcp-reset, I believe 503 is the accurate responsecode.
408 Timeout is timeout at SIP level - there was no response (final)
received for the sent request. Here is the case where the request was
not even sent out.
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