[Users] corrupted From with uac_replace_from in case of re-invite

tele tele at plexia.com
Mon Apr 16 12:53:23 CEST 2007


The vendor said:

"Our implementation of SIP manages in various way regarding the other
device in test, header field “Record” (in particular not retrasmit all
param but filter, for example the "lr" parameter). That cause calling to
consider the proxy of type “strict” and changes the Request-Uri of the

We've also notice that the vendor UA not mirror all the RR parameters

for example:

RR of INVITE from OpenSER to -> UA


and the Re-INVITE from UA to OpenSER


So i think OpenSER use the ftag and vsf parameter of Route header for
generate the correct From header.. is that true?
so the vendor UA MUST mirror untouched all the parameters?



On Tue, 2007-04-03 at 17:27 +0300, Bogdan-Andrei Iancu wrote:
> Hi tele,
> the problem is with the re-INVITE which is malformed.
> original INVITE had the FROM URI 
> <sip:396006660084 at plx-c5-pbx.plexia.com:5060>, but the re-INVITE has 
> <sip:0104491093 at plx-c5-pbx.plexia.com:5060>....
> the FROM URI does not change during the dialog. It looks like UA bug.
> regards,
> bogdan
> tele wrote:
> > Hi all,
> >
> > I'm occured in this problem already seen here:
> > http://www.openser.org/pipermail/users/2006-March/003540.html
> >
> > My problem occured between two different UA and only in case of a
> > Re-INVITE for a T.38 fax communication.
> >
> > Im' using openser 1.2.0.
> > I'm doing some translation with From for a correct CLI screening.
> > I'm also checked that the RR parameters are correctly mirrored.
> >
> > find attached here the debug.log and a network trace.
> >
> > thank you
> >
> > :tele
> >
> >   
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