Re: Cspace and Trilight software

Seth I haven't found a reliable, usable, simple, free software VoIP client for Linux This is the best I see. For most of the platforms. https://jitsi.org/Main/Download https://github.com/jitsi/jitsi

From their page:

Encrypted password storage

Password protection with a master password Encrypted Instant Messaging with Off-the-Record Messaging (OTRv4) Chat authentication with the Socialist Millionaire Protocol over *OTR* Call encryption with SRTP and *ZRTP* for XMPP and SIP Call encryption with SRTP and SDES for XMPP and SIP DNSSEC support

TLS support and certificate-based client authentication for SIP and XMPP