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Re: [Linphone-developers] Failure to establish ZRTP sessions using linph
Re: [Linphone-developers] Failure to establish ZRTP sessions using linphone-iphone built from source
Fri, 18 Jan 2013 09:33:02 +0100
On Thu, Jan 17, 2013 at 04:43:01PM -0500, Eli Burke wrote:
> I have compiled linphone-iphone from source, using "make all
> enable_gpl_third_parties=yes enable_zrtp=yes" and am now trying to
> verify the functionality of the ZRTP integration. So far, I am not able
> to establish a ZRTP-secured connection (SRTP works fine).
> Has anyone successfully used linphone with ZRTP since Linphone 2.0 was
> released? I know ZRTP is not enabled in the App store version, so it
> would have to be tested using a version you've built yourself.
> Some additional background: we are using Freeswitch and can
> successfully establish ZRTP calls using the Groundwire app. When I try
> to call between Groundwire and Linphone, I either get an unprotected
> phone call, or if I set Groundwire to require ZRTP, it immediately
> hangs up. I also tried calling between two instances of Linphone, and
> got the 'insecure call' icon. (vs SRTP which showed the 'secure'
It is strange that you cannot call between two Linphone instances.
You should enable debug logs and check the ZRTP discution: you should see
that some HELLO packets are sent and received.
> Other notables: So far I have only tested in the Simulator, so it is
> possible ZRTP only works on live hardware. and This is speculation,
> but to my untrained eye it looks like during an outbound call
> 'zrtp-hash' is not listed in the SDP header, and in an incoming call it
> is not being parsed.
We do not support this optionnal feature yet.
Patches welcomed :).