[VOIPSEC] need info

[Anand Thangaraj]

thx for the information,

i am looking mainly from the client side, so it is from  "handset & IP PBX"

if any one can add more info on that, i will really appreciate the effort.

thank you




On 6/2/06, dan_york at mitel.com <dan_york at mitel.com> wrote:
>
>
> Anand,
>
> I've actually not seen anywhere a concise list of the specific signalling
> protocols used by all of us who create IP-PBXs.  There's a long list of the
> vendors in the voip-info.org wiki at:
>
>   http://www.voip-info.org/wiki/index.php?page=VOIP+PBX+and+Servers
>
> but you might have to hunt through that to find the info you are looking
> at.
>
> Regarding your specific list of vendors, there are folks here on the
> mailing list from many of those vendors.  I think the question is really for
> you - *where* are you trying to capture and evaluate the signalling?
>
> Are you trying to capture the traffic between handset and IP PBX?  Between
> multiple IP PBXs?  Trunking out to a service provider?
>
> Different signalling protocols are going to be used at different places.
>  Between handset and IP PBX, I believe Cisco generally uses SCCP (aka
> "Skinny") and now also supports SIP.  I believe Nortel's systems generally
> use their own UNISTIM but also support SIP.  Not entirely sure of the
> specific protocols used on the Siemens and Ericsson systems between their
> handsets and systems.   This may also vary by vendor based on which IP PBX
> you  are using, as some vendors may have different PBXs that support
> different signalling protocols.
>
> So what protocols you see will really vary widely depending upon where you
> are looking at the traffic and specifically which devices you are testing.
>  Probably the only really good way for you to figure that out may be to dig
> through the technical documentation for the specific pieces of equipment
> that you have.
>
> Regards,
> Dan
>
> P.S. For anyone seeking a distraction for a few minutes (and with the
> knowledge), the Wikipedia article on signaling protocols is in *serious*
> need of content!  See:
>
>   http://en.wikipedia.org/wiki/Signaling_protocol
>
> --
> Dan York, CISSP
> Dir of IP Technology, Office of the CTO
> Mitel Corp.     http://www.mitel.com
> dan_york at mitel.com +1-613-592-2122
> PGP key (F7E3C3B4) available for
> secure communication
>
>
>
>    *"Anand Thangaraj" <anandthangaraj at gmail.com>*
> Sent by: Voipsec-bounces at voipsa.org
>
> 06/02/2006 09:25 AM
>
>         To:        Voipsec at voipsa.org
>         cc:
>
>         Subject:        Re: [VOIPSEC] need info
>
>
>
>
>  thank you for all the paper...
>
>
> i still got one more query,
>
> can any one give information on  vendors CISCO, NORTEL,SIEMENS, ERICSSON -
> what kind of signalling protocol they use for their VOIP products
>
> I will be happy if anyone can give information on all the support
> protocols
> they use.
>
>
> regards
> anand
>
>
>
> On 6/1/06, Alexandre Passito <alexandre.passito at gmail.com> wrote:
> >
> > Again,
> > I have a paper too. We used the signals and informations from the own
> > softphone.
> >
> >  2006/6/1, Anand Thangaraj <anandthangaraj at gmail.com >:
> >
> > > hi ,
> >
> > can anyone give me any IEEE paper which deals with VOIP security,
> >
> > Iam mainly focussing on capturing the signals which is sent in a VOIP
> > session,
> >
> > Is there any possibility to find an attack using these signal
> > transmission.
> >
> >
> > regards
> >
> > anand
> > _______________________________________________
> >
> > Voipsec mailing list
> > Voipsec at voipsa.org
> > http://voipsa.org/mailman/listinfo/voipsec_voipsa.org
> >
> >
> >
> >
> > --
> > --
> > Alexandre Passito - Estudante de Mestrado
> > Universidade Federal do Amazonas (UFAM)
> > Departamento de Ciência da Computação (DCC)
> > --
> > Alexandre Passito - M.Sc. Student
> > Federal University of Amazonas (UFAM)
> > Computer Science Department (DCC)
> > --
> > E-mail: passito at dcc.ufam.edu.br
> > Web: www.dcc.ufam.edu.br/~passito
> > Manaus - AM - Brasil
> >
> >
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