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Innovation is everywhere. In 2007, we began podcasting and interviewing technology experts and innovators. In 2010, we rolled out our online magazine Techistan and social video Muntwo. We are media partner for hundreds of Earth's favorite empowering events. We hope you enjoy listening to our conversations here on DIDX podcasts.

About us: Super Technologies, Inc. was a dotcom startup in 1999 ... providing voice over dialup Internet services and Virtual Phone Lines (a service that enables people and organizations to have a local presence in any of up to 60 countries and be a local call to their VIP) via direct inward dialing and SIP.

In 2005, we started DIDX, enabling 10 telecoms to buy and/or sell phone numbers wholesale. By 2011, we now serve 18,000 wholesale IP communications companies on DIDX.

Conversations with Tech and Social Leaders

DIDX Audio Podcasts is a program devoted to the art and craft of technology and social leadership and inspiration. The show, created and hosted by the DIDX.net team since 1999, features interviews with real people who have accomplished things we want to share. They are of different nations, religions, careers, gender, and attitudes. Be inspired! And please recommend others for us to interview and let you eavesdrop on!

Download FreeSWITCH does ZRTP 03-12-2016 (7.88 MB)

Duration: 17:13 m - Filetype: mp3 - Bitrate: 64 KBPS - Frequency: 32000 HZ


  • Michael Collins began working more closely with the FreeSWITCH development team in December 2008 but he's been involved in the community for quite a while. He shares with us, what is ZRTP and more? Brian West completed the add of this feature in one day with some input from Tony, says Michael.

    Basically, the encryption happens on the media stream (RTP), including the 'key exchange,' as opposed to the signaling (RTP) It keeps anyone from hearing the call's audio or recording it. Any soft phone like Xlite or zphone should work find with ZRTP on FreeSWITCH.

    Device manufacturers and producers (hard phones and hard phone adapters) are invited to discuss adding the ZRTP. Take part in the excitement brewing with the FreeSWITCH and open source developer community at the Wyndham Chicago Hotel Aug 4-6, 2009 at Cluecon. Sign up at  http://www.cluecon.com


    Keywords: zrtp, srtp, encryption, audio, voip, freeswitch, asterisk, open source, telephony, cluecon, conference, michael collins, brian west