481 Call leg/Transaction does not exist

Well, thats because the call leg or transaction DOES NOT
EXIST .
Looks like the transaction timed out and then you tried to
CANCEL it
therefore the error.

On 5/4/07, asmouta <asmoutagmail.com> wrote:
> Hi all,
>
>  I'm still trying to find out why the call process
doesn't work perfectly.
> For these purpose I made some ethereal capture of the
trafic between two
> sip-communicator clients, one installed on Mandriva
2006 (192.168.27.104)
> and the other on WindowsXP (192.168.27.10). The SIP
proxy server is an
> Asterisk server (192.168.27.33). I made the same test
with SJphone client on
> WindowsXP, I was able to make a call from the
sip-communicator (linux) to
> the SJphone client. The ethereal capture showed a
correct transaction and
> all was right. Then I tried with two sip-communicator
clients and it wasn't
> a success!! So like Emil has adviced me, I made some
tests and tried to
> analyze the sip traces (joined within this mail). The
only thing I've
> noticed is that when the phone A (192.168.27.104) send
an INVITE to the
> phone B (192.168.27.10) it was correctly proceeded by
the proxy server
> (192.168.27.33). The INVITE was sent to the phone B six
times but no
> response came back. And  the "481 Call
leg/Transaction does not exist" was
> send by the phone B just after the proxy send a CANCEL
request.
>  I googled and I found that this error message appears
when the server
> received a cancel request that doesn't fit the existant
transaction... It
> seems to me that the phone B wasn't able to find out
that an INVITE message
> was send to it..
>
>  Have anyone faced the same problem?? Hope that you'll
answer to my
> questions.
>
>  Thanks a lot.
>
>
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>


-- 
M. Ranganathan
"There are two ways to write error-free programs; only
the third one
works." --  Alan Perlis

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Hello,

As I've mentioned previously, our call functionalities are
currently 
unstable, so unfortunately it's not abnormal that you should
be 
experiencing similar problems.

> .. what I'm trying to find out is where can I look 
> for in the sip-communicator code to correct this
error...

Most of the call control code is located in 
src/net/java/sip/communicator/impl/protocol/sip/OperationSet
BasicTelephony.java
and
src/net/java/sip/communicator/impl/protocol/sip/ProtocolProv
iderServiceSipImpl.java

Good luck!

Emil


asmouta wrote:
> I already know that  anyway
thanks for the reply.
> 
> I haven't modified the source code of sip-communicator
and what I'm not 
> understanding is why when I make a call from the
sip-communicator to the 
> SJphone, the SJphone is able to listen to the INVITE
request and to 
> establish the transaction. It seems to me that the
sip-communicator 
> isn't able to do so... what I'm trying to find out is
where can I look 
> for in the sip-communicator code to correct this
error...
> 
> Thanks a lot.
> 
> On 5/4/07, *M. (Neo-Ranga) Ranganathan* <mrangagmail.com

> <mailto:mrangagmail.com>> wrote:
> 
>     Well, thats because the call leg or transaction
DOES NOT EXIST .
>     Looks like the transaction timed out and then you
tried to CANCEL it
>     therefore the error.
> 
>     On 5/4/07, asmouta < asmoutagmail.com
<mailto:asmoutagmail.com>>
>     wrote:
>      > Hi all,
>      >
>      >  I'm still trying to find out why the call
process doesn't work
>     perfectly.
>      > For these purpose I made some ethereal
capture of the trafic
>     between two
>      > sip-communicator clients, one installed on
Mandriva 2006
>     (192.168.27.104 <http://192.168.27.104>)
>      > and the other on WindowsXP (192.168.27.10
>     <http://192.168.27.10>
). The SIP proxy server is an
>      > Asterisk server (192.168.27.33 <http://192.168.27.33>
). I made
>     the same test with SJphone client on
>      > WindowsXP, I was able to make a call from the
sip-communicator
>     (linux) to
>      > the SJphone client. The ethereal capture
showed a correct
>     transaction and
>      > all was right. Then I tried with two
sip-communicator clients and
>     it wasn't
>      > a success!! So like Emil has adviced me, I
made some tests and
>     tried to
>      > analyze the sip traces (joined within this
mail). The only thing
>     I've
>      > noticed is that when the phone A
(192.168.27.104
>     <http://192.168.27.104>) send an INVITE to the
>      > phone B (192.168.27.10 <http://192.168.27.10>
) it was correctly
>     proceeded by the proxy server
>      > (192.168.27.33 <http://192.168.27.33>
). The INVITE was sent to
>     the phone B six times but no
>      > response came back. And  the "481 Call
leg/Transaction does not
>     exist" was
>      > send by the phone B just after the proxy send
a CANCEL request.
>      >  I googled and I found that this error
message appears when the
>     server
>      > received a cancel request that doesn't fit
the existant
>     transaction... It
>      > seems to me that the phone B wasn't able to
find out that an
>     INVITE message
>      > was send to it..
>      >
>      >  Have anyone faced the same problem?? Hope
that you'll answer to my
>      > questions.
>      >
>      >  Thanks a lot.
>      >
>      >
>    
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>      > dev-helpsip-communicator.dev.java.net
>     <mailto:dev-helpsip-communicator.dev.java.net>
>      >
>      >
> 
> 
>     --
>     M. Ranganathan
>     "There are two ways to write error-free
programs; only the third one
>     works." --  Alan Perlis
> 
>    
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> 
> 

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