[jitsi-users] Freeswitch bypass-media, ZRTP, Jitsi broken

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#1

This seems to be a simple enough request, repeated.

Does, or does not Jitsi support zrtp-hash in the SDP?

I have tested with both latest Jitsi release and nightly builds, with all
security option permutations. Both Acrobits and Csipsimple achieve
zrtp-passthrough on my freeswitch system.

(freeswitch: <param name="inbound-zrtp-passthru" value="true"/>) for both
internal and external profiles.

Net searches are contradictory regarding whether Jitsi supports zrtp-hash in
signalling.

Two simple questions:

Does current Jitsi support zrtp-hash for zrtp passthrough freeswitch?

If yes, what am I missing in Jitsi config to enable the zrtp-hash?

Thanks;

Bill Ross

ยทยทยท

From: Bill Ross [mailto:rossbcan@gmail.com]
Sent: March-15-14 4:08 PM
To: 'users@Jitsi.org'
Subject: Freeswitch bypass-media, ZRTP, Jitsi broken

Hi;

I am having an issue with Jitsi ZRTP CRC errors when in
inbound-zrtp-passthru=true mode

There is a Freeswitch bug report regarding this:

http://jira.freeswitch.org/browse/FS-5554

.concluding that Jitsi does not send the correct signalling information in
order to negotiate proxy-media.

I concur, since in my logfiles, SDP lacks zrtp-hash

Anybody willing to look into this and help me sort it out?

Seems to be lacking:

It would also appear that Jitsi doesn't add the zrtp hash in the invite or
the 200 OK so it can't automatically proxy,

Thanks;

Bill Ross

#2

This seems to be a simple enough request, repeated.

Does, or does not Jitsi support zrtp-hash in the SDP?

We do send the hash, but do not use its information when a call is received.

I have tested with both latest Jitsi release and nightly builds, with all
security option permutations. Both Acrobits and Csipsimple achieve zrtp-
passthrough on my freeswitch system.

(freeswitch: <param name="inbound-zrtp-passthru" value="true"/>) for both
internal and external profiles.

Net searches are contradictory regarding whether Jitsi supports
zrtp-hash in signalling.

Two simple questions:

Does current Jitsi support zrtp-hash for zrtp passthrough freeswitch?

If yes, what am I missing in Jitsi config to enable the zrtp-hash?

I don't know. What I do know is that ZRTP itself does not require the hash
in the SDP and that FreeSWITCH should not rely on it.

Thanks;
Bill Ross

Ingo