20 Jul
2006
20 Jul
'06
8:31 p.m.
Hi,
Norman Brandinger wrote:
At the top of our ROUTE_INVITE, we have:
#----------------------------------------------------------------------
# Let the UA know we are working on their request -
# they shouldn't send retransmissions
#----------------------------------------------------------------------
sl_send_reply("100", "Trying");
This seems to work and it was adapted from code used during REGISTER
processing.
If I got Missner's problem right, he wants to prevent sending multiple
100 replies back to the uac.
The rfc says - Page 109, paragraph 5 - that "MUST be forwarded
immediately [...] Any provisional response other than 100 (Trying)" and
later, in same paragraph that "A stateful proxy MUST NOT immediately
forward any other [= 101<=x<=299] responses". Now, it's true that in
this case the proxy would not literally forward a 100 reply back, but
the uac would still see 2x100.
Now, if he does SL reply at the beginning, the tm module will, again,
send a 100 on his own, before relaying.
The question is how to prevent this, if I got it right...
WL.
Regards,
Norm
Klaus Darilion wrote:
AFAI remember there was function t_relay_no_ack
or similar. Take a
lookat the README from TM module.
regards
klaus
T.R. Missner wrote:
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Hello,
I want to send an immediate 100 trying message when an Invite is
received, then I do a DB lookup, then I rewrite the RURI and forward
the message using t_relay.
Since I have already sent a 100 trying manually I’d like to short
circuit the 100 t_relay sends so multiple 100 trying messages aren’t
sent.
Does anyone know of a way to do this?
Thanks,
T.R.
------------------------------------------------------------------------
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