20 Dec
2006
20 Dec
'06
6:19 p.m.
Hi!
TAke a look at this line:
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=Contact: sip:02111@xx.87.220.xx:6060,
sip:02111@xx.87.220.xx:6060
The destination set include 2 destinations:
sip:02111@xx.87.220.xx:6060 and
sip:02111@xx.87.220.xx:6060
Thus, openser will fork the call with 2 branches (if you take a look at
the message flow you will see 2 INVITEs from openser to Asterisk which
are nearly identical, only the branch parameter in openser's Via header
will be different.)
Asterisk is buggy and does not recognize that the 2 INVITEs are
different branches but think the second INVITE is a retransmission.
Thus when Asterisk accepts the call (accepting on of the two branches),
openser will cancel the other branch. As the second branch is identical
to the first one, it will send the CANCEL to Asterisk. As Asterisk cann
not handle multiple dialog it wil think this is the recently accepted
call and will hang up.
Conclusion: fix your openser config. Probably in your exec script (or
somewhere in openser.cfg) you create a second branch which will be
filled with the same URI as the first destination.
regards
klaus
PS: please always Cc the mailing list.
Md. Samiul Aftad Chowdhury wrote:
Sorry for quite a late reply...
but i found same scenario when i am sending the call to an asterisk box.
Here is the log you asked for:
In following scenario:
xx.35.32.xx <- My Openser IP which is running on 5060 port
xx.87.220.xx:6060 <- Asterisk Box where i am forwarding the calls
which is running on 6060 port
xx.88.13.xx <- ipphone ip
Same thing is happening here just after receiving 200 OK Openser
generating a CANCEL.
i am using :
============================================
exec_dset("/usr/local/route"); # here route is a script which returns
a desired host port (URI)
append_branch();
============================================
to rewrite the host port.
Dec 20 14:47:45 openser[17368]: Invite ->
[CallerID=sip:707234121839@xx.35.32.xx] and [DialedNo=02111]
Dec 20 14:47:46 openser[17366]: Invite ->
[CallerID=sip:707234121839@xx.35.32.xx] and [DialedNo=02111]
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
first branch: $br=sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
all branches: $bR=sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=Contact: sip:02111@xx.87.220.xx:6060,
sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination uri: $du=
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
uri: $ru=sip:02111@xx.87.220.xx:6060
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
first branch: $br=<null>
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
all branches: $bR=
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=<null>
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination uri: $du=
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
uri: $ru=sip:02111@xx.87.220.xx:6060
On 12/7/06, Klaus Darilion <klaus.mailinglists(a)pernau.at> wrote:
>
> Hi!
>
> I could not find any suspect messages. I guess there is some parallel
> forking inside openser, thus, the second branch is cancelled when the
> first branch picks up.
>
> Can you add this just before t_relay():
>
> xlog("L_INFO","$ci request's first branch:
$$br=$br\n");
> xlog("L_INFO","$ci request's all branches:
$$bR=$bR\n");
> xlog("L_INFO","$ci request's destination set:
$$ds=$ds\n");
> xlog("L_INFO","$ci request's destination uri:
$$du=$du\n");
> xlog("L_INFO","$ci request's uri:
$$ru=$ru\n");
>
>
> regards
> klaus
>
--
Klaus Darilion
nic.at
26 Dec
26 Dec
11:28 a.m.
New subject: [Users] OpenSer Sending CANCEL after receiving 200 OK for a INVITE
Thanks Klaus.
It really helped. It was a pure mistake done by me.
In my cfg file I'v done some thing like this:
in the route{} block...
if (!method=="REGISTER") {
exec_dset("/usr/local/gplex/sbin/route"); #<-- as i am takeing the
routing info from
#
external script
append_branch(); #<----[This is the line that caused the problem]
};
as I had to use "append_branch()" for my failure routes...
i added (by mistake) this in line also in the main route block thus it
was making forked calls to same
destination twice, but with different branch params. and next thing
was same that you told
in your last mail. Buggy asterisk (in my case Mera 0.1.2 also)
canceling the 1st branch
though that cancel was for the 2nd branch. After removing the
append_branch() from my main route block its working perfect.
Thanks again.
[PS: I didnt relized that i was only replying to you instead of
mailing list, this time solved.]
Regads,
Aftad
On 12/20/06, Klaus Darilion <klaus.mailinglists(a)pernau.at> wrote:
Hi!
TAke a look at this line:
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=Contact: sip:02111@xx.87.220.xx:6060,
sip:02111@xx.87.220.xx:6060
The destination set include 2 destinations:
sip:02111@xx.87.220.xx:6060 and
sip:02111@xx.87.220.xx:6060
Thus, openser will fork the call with 2 branches (if you take a look at
the message flow you will see 2 INVITEs from openser to Asterisk which
are nearly identical, only the branch parameter in openser's Via header
will be different.)
Asterisk is buggy and does not recognize that the 2 INVITEs are
different branches but think the second INVITE is a retransmission.
Thus when Asterisk accepts the call (accepting on of the two branches),
openser will cancel the other branch. As the second branch is identical
to the first one, it will send the CANCEL to Asterisk. As Asterisk cann
not handle multiple dialog it wil think this is the recently accepted
call and will hang up.
Conclusion: fix your openser config. Probably in your exec script (or
somewhere in openser.cfg) you create a second branch which will be
filled with the same URI as the first destination.
regards
klaus
PS: please always Cc the mailing list.
Md. Samiul Aftad Chowdhury wrote:
Sorry for quite a late reply...
but i found same scenario when i am sending the call to an asterisk box.
Here is the log you asked for:
In following scenario:
xx.35.32.xx <- My Openser IP which is running on 5060 port
xx.87.220.xx:6060 <- Asterisk Box where i am forwarding the calls
which is running on 6060 port
xx.88.13.xx <- ipphone ip
Same thing is happening here just after receiving 200 OK Openser
generating a CANCEL.
i am using :
============================================
exec_dset("/usr/local/route"); # here route is a script which returns
a desired host port (URI)
append_branch();
============================================
to rewrite the host port.
Dec 20 14:47:45 openser[17368]: Invite ->
[CallerID=sip:707234121839@xx.35.32.xx] and [DialedNo=02111]
Dec 20 14:47:46 openser[17366]: Invite ->
[CallerID=sip:707234121839@xx.35.32.xx] and [DialedNo=02111]
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
first branch: $br=sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
all branches: $bR=sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=Contact: sip:02111@xx.87.220.xx:6060,
sip:02111@xx.87.220.xx:6060
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination uri: $du=
Dec 20 14:47:46 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
uri: $ru=sip:02111@xx.87.220.xx:6060
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
first branch: $br=<null>
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
all branches: $bR=
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination set: $ds=<null>
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
destination uri: $du=
Dec 20 14:48:01 openser[17366]: oRnbgCwOGh9EngQ1(a)xx.88.13.xx request's
uri: $ru=sip:02111@xx.87.220.xx:6060
On 12/7/06, Klaus Darilion <klaus.mailinglists(a)pernau.at> wrote:
>
> Hi!
>
> I could not find any suspect messages. I guess there is some parallel
> forking inside openser, thus, the second branch is cancelled when the
> first branch picks up.
>
> Can you add this just before t_relay():
>
> xlog("L_INFO","$ci request's first branch:
$$br=$br\n");
> xlog("L_INFO","$ci request's all branches:
$$bR=$bR\n");
> xlog("L_INFO","$ci request's destination set:
$$ds=$ds\n");
> xlog("L_INFO","$ci request's destination uri:
$$du=$du\n");
> xlog("L_INFO","$ci request's uri:
$$ru=$ru\n");
>
>
> regards
> klaus
>
--
Klaus Darilion
nic.at
6544
days inactive
6550
days old
1 comments
2 participants
participants (2)
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Klaus Darilion -
Md. Samiul Aftad Chowdhury