Asterisk is an open-source framework for building communication-based applications. Historically, Asterisk is an alternative to most proprietary Private Branch eXchange (PBX) systems, dealing with voice communications, conference calling IVR or voicemails. Quite modular, Asterisk is shipped with several audio codecs (g711a, g711u, g722, gsm), handles standard protocols (SIP, IAX), and could be used virtually anywhere … Continue reading Asterisk