asterisk-sounds -- Sound files for the Asterisk PBX and telephony application and toolkit
http://www.asterisk.org/
Asterisk is an Open Source PBX and telephony development platform that can both replace a conventional PBX and act as a platform for developing custom telephony applications for delivering dynamic content over a telephone similarly to how one can deliver dynamic content through a web browser using CGI and a web server. Asterisk talks to a variety of telephony hardware including BRI, PRI, POTS, and IP telephony clients using the Inter-Asterisk eXchange protocol (e.g. gnophone or miniphone). This package contains freely usable recorded sounds that were meant to be used with Asterisk.