14 May
2013
14 May
'13
9:20 a.m.
Hugh Waite writes:
I can't remember if branches using TCP that fail
to establish a
connection generate a 408 Timeout response or not (eventually).
no, i get this immediately when t_relay() fails to dead tcp destination:
SIP/2.0 477 Unfortunately error on sending to next hop occurred (477/TM).
If an immediate error is detected, like a TCP
connection failure,
perhaps a different 'fake' reply, similar to timeout could be generated
and sent through the reply handling code for that UAC. This would
trigger the branch_failure route and also the failure route when all
replies are received, allowing faster response handling instead of
timeouts.
yes, if tm:branch-failure cannot be activated directly from tm
[t_fwd.c:1520] then perhaps a fake reply can be generated from there.
that, however, goes beyond my knowledge of tm module.
-- juha