Table of Contents

Applications - Communication

VOIP

Voip-info.org

RTC Quick Start Guide Best-practice deployment of VoIP, Webcam and IM/Chat technologies using open standards and federation.

DIDWW - SIP with firewall/NAT using Asterisk
The Smartvox Knowledgebase - Using SIP Devices behind NAT

baresip is a portable and modular SIP User-Agent with audio and video support. Uses libre and librem.
librem is a portable and generic library for real-time audio and video processing.
libre is a portable and generic library for real-time communications with async IO support and a complete SIP stack with support for SDP, RTP/RTCP, STUN/TURN/ICE, BFCP and DNS Client.
restund is a modular and flexible STUN and TURN Server, with IPv4 and IPv6 support.
tomeko.net - VoIP/SIP client (softphone) for Windows based on baresip.

Asterisk

Asterisk

Asterisk Documention wiki
Asterisk Security Webinars

Polycom - [FAQ] How can I setup a TLS connection for SIP signaling and / or troubleshoot this?
Voip-info.org - SIP TLS