Hi Daniel
No, replies are not dropped.
I looked into source code, particularly
tmx_mod.c::t_cancel_callid() function.
It alter the global pointer T (pointing to the transaction
currently processed), but do not restore original value at
the end:
- at the beginning of t_cancel_callid(), T is NULL
- then t_lookup_callid() make it point to the
transaction we want to cancel
- and the pointer is not cleanup before exiting
t_cancel_callid
Here is a patch that fix this issue (it may not be the
correct way to do it)
Regards,
Guillaume
On 20/11/2013 22:57, Daniel-Constantin Mierla wrote:
Hello,
are you dropping replies? I don't see the 'SIP/2.0 487
Request Terminated' being sent to caller, it looks ok and
has two Via headers.
Cheers,
Daniel
On 11/20/13 4:06 PM,
Guillaume Bour wrote:
On 20/11/2013 12:01,
Daniel-Constantin Mierla wrote:
Hello,
On 11/20/13 11:50 AM,
Guillaume Bour wrote:
Hi All
We wan't to prevent our users to make more than one
call at time, so we choose to disconnect the
previous call.
When the previous call is established, we use
dlg_bye(), and its ok.
But when it is in early state, we use
t_cancel_callid() to cancel its INVITE transaction.
We face 2 issues:
1) we use local-request event route to account
calls on timeout. Sometimes this route is called for
the cancelled call (after default timeout of 1 hour)
what is in the local-request in this case? Is it a
BYE?
2) t_cancel_callid() cancel
previous call, but also make current dialog
disappear: call is still ongoing and we can
answer and talk to each other, but the dialog does
not appear in 'kamctl stats dialog' and 'kamctl mi
dlg_list' commands
Is there a known limitation, or do we misuse
t_cancel_callid() ?
Can you send the log with debug=3 in kamailio.cfg? It
will help to see what happens. Otherwise, if the call
id is different for current dialog, it should not
happen. The ngrep output in this situation (for both
first and second invite) will help.
Cheers,
Daniel
Hi Daniel,
local-request is triggered by a BYE
I have attached sample log and trace
There is some kind of dialogs mixing. Here is the 1st
call dialog as reported by "kamctl mi dlg_list" before
and after the 2d call is answered:
# kamctl mi dlg_list
dialog:: hash=2790:3231
state:: 2
ref_count:: 1
timestart:: 0
timeout:: 0
callid:: GoXhk8GfkIEEqFyFNcySEjSOOpVKg4Uq
from_uri:: sip:15909901@staging.voip
from_tag:: swYh88AkicGbSHpK.D1z7uo3EX9Q-.AZ
caller_contact:: sip:37984520-gch2kindtioq8@10.0.1.10:5060;transport=udp
caller_cseq:: 24899
caller_route_set::
caller_bind_addr:: udp:10.0.1.10:5060
callee_bind_addr::
to_uri:: sip:+3360000011@staging.voip
to_tag::
callee_contact::
callee_cseq::
callee_route_set::
# kamctl mi dlg_list
dialog:: hash=2790:3231
state:: 3
ref_count:: 2
timestart:: 1384952191
timeout:: 20242152
callid:: GoXhk8GfkIEEqFyFNcySEjSOOpVKg4Uq
from_uri:: sip:15909901@staging.voip
from_tag:: swYh88AkicGbSHpK.D1z7uo3EX9Q-.AZ
caller_contact:: sip:37984520-gch2kindtioq8@10.0.1.20:5060;transport=udp
caller_cseq:: 24899
caller_route_set::
caller_bind_addr:: udp:10.0.1.10:5060
callee_bind_addr:: udp:10.0.1.10:5060
to_uri:: sip:+3360000011@staging.voip
to_tag:: as6c8b935a
callee_contact:: sip:+3360000022@10.0.1.11:5060
callee_cseq::
callee_route_set::
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