[asterisk-dev] Broken SIP dialog if INFOmessagesreceivedbeforefinal OK

Nick Lewis Nick.Lewis at atltelecom.com
Tue Apr 20 06:54:05 CDT 2010


>The use of INFO is very poorly documented, but we should 
>be able to handle other transactions while we have an 
>open INVITE transaction.
I think most transactions other that INFO (e.g. REGISTER, SUBSCRIBE,
NOTIFY, OPTIONS) would be in a different dialog/Call-ID from the open
INVITE transaction so would not present asterisk with a problem. There
seems to be much argument in the ietf lists regarding nested reinvites
and updates which looks to a first approximation to summarise to
"don't". Therefore the potential need for nested dialog transactions
seems to be limited to INFO.

>The SIP stack needs a lot of love.
I think all my love is used up on the unambiguous non-compliances in the
sip stack. If Karl raises a bug perhaps someone else has love to spare
for early media INFO

-- N_L


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