<html><head><base href="x-msg://1029/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I can see that you are looking for some more information on how strp and zrtp work. I have found quite a bit of information on this topic at the following url:<div><br></div><div><meta charset="utf-8"><a href="http://www.google.com/search?q=srtp+zrtp">http://www.google.com/search?q=srtp+zrtp</a></div><div><br></div><div><a href="http://www.google.com/search?q=srtp+zrtp"></a>Mike</div><div><br><div><div>On Apr 7, 2010, at 2:00 AM, SERGE TUMBA wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div class="hmmessage" style="font-size: 10pt; font-family: Verdana; ">hello Jason,<br> <br>Thank you for your prompt responses and you have been very helpfull. I also tried SRTP on Asterisk and I got virus when downloading libraries ... and I also found ZRTP is better. However, can you be specific about SRTP interoperability with end-points that support it? it looks like this is a benefit of SRTP over ZRTP? While ZRTP is based on SRTP right?<br> <br>Thank you!<br> <br>Serge.<br> <br><br>> Date: Wed, 7 Apr 2010 15:06:41 +1000<br>> From:<span class="Apple-converted-space"> </span><a href="mailto:jason@jasonjgw.net">jason@jasonjgw.net</a><br>> To:<span class="Apple-converted-space"> </span><a href="mailto:freeswitch-users@lists.freeswitch.org">freeswitch-users@lists.freeswitch.org</a><br>> Subject: Re: [Freeswitch-users] SRTP on FreeSWITCH<br>><span class="Apple-converted-space"> </span><br>> SERGE TUMBA <<a href="mailto:serget68@msn.com">serget68@msn.com</a>> wrote:<br>> ><span class="Apple-converted-space"> </span><br>> > I know that FreeSWITCH supports ZRTP but I would like to know if someone already tried to deploy SRTP on FreeSWITCH? If so, can I have the HOWTO describing this setup if any have been done?<br>><span class="Apple-converted-space"> </span><br>> I tried it, but it exposed bugs in OpenSSL. Soon thereafter, ZRTP became<br>> available so I switched to that.<br>><span class="Apple-converted-space"> </span><br>> If you want SRTP, you have to turn on TLS, make sure that both ends are using<br>> it, and enable SRTP in the SIP profile, if I remember correctly. ZRTP is<br>> better in my opinion; the only reason why you would want to use SRTP is for<br>> interoperability with end-points that support it, but not ZRTP - unless you<br>> have a public-key infrastructure in place that you want to use for some<br>> reason.<br>><span class="Apple-converted-space"> </span><br>><span class="Apple-converted-space"> </span></div></blockquote></div></div></body></html>