[Freeswitch-users] problems with freeswitch + zrtp in proxy-media mode

[Steven Ayre]

Is there a reason you're using proxy media mode?

Does it work in normal media handling mode? (ie not proxy and not bypass)

-Steve



On 1 February 2013 14:15, Eli Burke <eburke at edge-net.net> wrote:

> Yes, inbound-zrtp-passthru is true. I think it gets set automatically when
> you turn on ZRTP.
>
> The config I'm testing with is a stock 'enable_zrtp=yes' build of HEAD
> circa last week, with proxy-media=true added to Local_Extension in the
> default dial plan.
>
> -Eli
>
> On Feb 1, 2013, at 6:00 AM, royj at yandex.ru wrote:
>
> > Is there <param name="inbound-zrtp-passthru" value="true"/> in profile
> >
> > On Thu, 31 Jan 2013 17:43:34 -0500
> > Eli Burke <eburke at edge-net.net> wrote:
> >
> >> I'm trying to use Freeswitch with an open source voip client called
> Linphone, but cannot manage to establish functioning ZRTP sessions. The
> problem *seems* to be related to the RTP stream's SSRC.  I'm trying to
> conclusively determine if the problem lies with Linphone, Freeswitch, or
> one of the underlying zrtp implementations (libzrtp and zrtpcpp).
> >>
> >> Here's what I've determined so far:
> >> 1) ZRTP support is compiled and functioning. I can establish ZRTP
> sessions between two iPhones running Groundwire.
> >> 2) linphone + ZRTP works correctly if I make a one legged call to a
> Freeswitch echo extension
> >> 3) linphone + ZRTP works correctly if I turn on bypass-media
> >> 4) linphone gets a CRC error when trying to verify the ZRTP packet on
> any two-legged call
> >> 5) disabling the CRC check results in a successful ZRTP session, but
> the audio is extremely garbled
> >>
> >> Is Freeswitch modifying the ZRTP packets when running in proxy mode? If
> so, how is it that some clients are able to handle this situation?
>
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