Linux TelephonyPaul Komkoff (email@example.com)
This paper covers the topic of implementing voice services in packet-switched (VoIP) and circuit-switched (traditional telephony) networks, using Linux and commodity hardware. It contains short introduction into general telephony, VoIP and PSTN, overview of VoIP services (and opensource software packages used to implement those services) and kernel interfaces that used in that packages. It covers the connection to the Public Switched Telephony Network using digital interfaces (E1/T1), kernel support for it in framework called "zaptel", and userspace integration issues. The conclusion is about current trends in Linux-based and open-source telephony.
You should have basic networking knowledge to better understand the presentation.