El Jueves, 10 de Diciembre de 2009, Daniel-Constantin Mierla escribió:
> does the 503 reply include a retry-after header?

Does Kamailio behaviour depends on that header? If so IMHO it's not correct.

I've joined long discussions in sip-implementors about 503 with/without  
Retry-After header. Some people think that a 503 without this header must be 
considered as a 500. But after discussions this assumption is not correct and 
a 503 must be considered similary even if it doesn't contain this header.

BTW RFC 3263 (Locating SIP Servers) says nothing about 500 error, neither 
about Retry-After header in 503 replies. It considers a 503 with/without 
Retry-After in same way.

IMHO Kamailio/SR should consider Retry-After just as informative but never 
change the routing/failover behavior based on it.

Regards.

-- 
Iñaki Baz Castillo <i...@aliax.net>

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