[Freeswitch-users] ZRTP error on call setup when dialling client uses ZRTP

[Ben]

Configuration is the default config that comes with installing Freeswitch,
which means that neither proxy media or bypass media are set and the audio
is being processed by Freeswitch.  As mentioned below, the setup is a simple
LAN setup with clients and server on the same LAN.  I have no advanced
config in the dialplan, all the user accounts are default, so it's just the
stock Freeswitch build.

Thanks.

-----Original Message-----
From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of royj
Sent: 16 January 2013 13:19
To: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] ZRTP error on call setup when dialling
client uses ZRTP


What about "full processing media mode" (without any options of proxying
media) on the client, which supports zrtp. May be useful to provide a
description of the configuration

On Wed, 16 Jan 2013 12:30:54 -0000
"Ben" <ben122uk at gmail.com> wrote:

> Hi,
> 
> Do you mean proxy_media=true in the dialplan?  If so, setting 
> proxy-media mode in the dialplan means that Freeswitch does not 
> negotiate keys with the client.  This is not the desired setup.
> 
> When both devices use ZRTP and proxy media is set, the keys exchange 
> directly between the clients, this seems to work fine.  It's when only 
> one client uses ZRTP do I have the problem.
> 
> Thanks.
> 
> -----Original Message-----
> From: freeswitch-users-bounces at lists.freeswitch.org
> [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of 
> royj
> Sent: 16 January 2013 12:11
> To: freeswitch-users at lists.freeswitch.org
> Subject: Re: [Freeswitch-users] ZRTP error on call setup when dialling 
> client uses ZRTP
> 
> 
> What is the proxy-media mode on both sides, in both cases. It matters. 
> In my case I have experienced this
> 
> On Wed, 16 Jan 2013 10:36:08 -0000
> "Ben" <ben122uk at gmail.com> wrote:
> 
> > Hi all,
> > 
> >  
> > 
> > My server is running the latest git stable build of Freeswitch, all 
> > config is default and server/clients are on simple LAN setup.  I'm 
> > having an issue when using ZRTP on one client only, specifically the
> dialling client.
> > 
> >  
> > 
> > The calling device has ZRTP enabled, and the called device does not.  
> > In this scenario, the FS server should act as a man in the middle 
> > and exchange keys with the calling device.  This results in the A 
> > leg being encrypted and the B leg un-encrypted.  However as soon as 
> > the key exchange initiates, the A client errors and tears down the call.
> > What's strange is that when I initiate the call from the non-zrtp 
> > client to the zrtp client, the keys exchange fine between server and 
> > client A, and 2-way audio is present.  So it's only when it's the 
> > dialling
> handset do I have the problem.
> > 
> >  
> > 
> > I've then gone on and tested the same thing on the latest git, and 
> > the problem goes away.  So my question is, can anyone advise on what 
> > changes/patches have been applied to the latest git that has 
> > resolved this issue?  I've tried to search the git tree, but I'll be 
> > honest I'm a bit unfamiliar with how it works and I'm not sure that 
> > I'm searching
> properly.
> > 
> >  
> > 
> > The ZRTP device is an iPhone running Groundwire, and it doesn't seem 
> > to matter what codec I use.
> > 
> >  
> > 
> > Thanks for the help!
> > 
> >  
> > 
> >  
> > 
> 
> ______________________________________________________________________
> ___ Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
>  
> 
> 
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
> 
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-use
> rs
> http://www.freeswitch.org
> 
> 
> ______________________________________________________________________
> ___ Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> 
>  
> 
> 
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
> 
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-use
> rs
> http://www.freeswitch.org

_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting at freeswitch.org
http://www.freeswitchsolutions.com




Official FreeSWITCH Sites
http://www.freeswitch.org
http://wiki.freeswitch.org
http://www.cluecon.com

FreeSWITCH-users mailing list
FreeSWITCH-users at lists.freeswitch.org
http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
http://www.freeswitch.org