[OpenSER-Users] Status code 408 returned by OpenSER when fr_timer expires; should it be 504?

[Anatoly Pidruchny]

Hello everybody,

I noticed that OpenSER replies with status code "408 Request Timeout" 
when the fr_timer (tm module) expires. I am wondering if the response 
code "504 Server Timeout" would be more appropriate in this case. The 
status code 408 means that "the server could not produce a response, 
e.g., a user location, within the time indicated in the Expires 
request-header field. The client MAY repeat the request without 
modifications at any later time."; and the status code 504 means "the 
server did not receive a timely response from an external server it 
accessed in attempting to process the request." It sounds to me that the 
description of the status code 504 better describes what happens in 
OpenSER when the fr_timer expires. Any comments? I am using OpenSER 1.2.x.

Best regards,
Anatoly Pidruchny.