This document provides information on components used in an Asterisk-based VoIP system, including:
1. Asterisk telephone software that turns an ordinary computer into a communications server supporting IP PBX systems, VoIP gateways, and custom solutions.
2. Digium PRI cards that connect to PRI lines and interface traditional telephony systems with VoIP technologies.
3. An FXS gateway that provides multiple analog telephone ports and supports VoIP systems and analog PBX phones.
4. Digium IP phones that allow users to take advantage of Asterisk flexibility and provide access to voicemail, call logs, and other information.
5. Softphone applications like CounterPath X-Lite