Philippe Sultan

Asterisk, the world's most widely used open-source IP telephony system, appeals to businesses of all sizes seeking reliable and cost-effective telephony solutions. Through a real-world business case study, this guide assists system administrators in designing and deploying their VoIP network. Beyond traditional voicemail, fax, and audio conferencing features, the Asterisk IP PBX also serves as a SIP interface with ISP equipment such as Freebox and public networks (PSTN, GSM, etc.). A true toolbox for developing powerful telephony applications, it integrates seamlessly with the web, email, instant messaging, and LDAP directories.