VoIP
Voice over IP
The ability of an IP network to carry telephone voice signals as IP packets in compliance with International Telecommunications Union Telecommunication Standardization Sector (ITU-T) specification H.323. VoIP enables a router to transmit telephone calls and faxes over the Internet with no loss in functionality, reliability, or voice quality.
From : www.trapezenetworks.com/technology/glossary_6.asp
VoIP stands for Voice Over Internet Protocol. Another term for VoIP is Voice Over IP or Internet telephony. In general, VoIP is converting analog voice data into digital packets and sending those packets over the Internet to a receiver at the other end.
From : www.voipresource.net/VoIP-tutorial.htm
BSDRadius
BSDRadius is open source RADIUS server targeted for use in Voice over IP (VoIP) applications.
The server is released under the BSD license, which means that you are allowed to download, install, use and modify it at no charge.
RADIUS - compliant AAA (Authentication, Authorization, Accounting) server
Various database engines: MySQL, PostgreSQL (support for Oracle is under development)
CHAP-password authentication for H.323
Digest authentication for SIP
Vendor specific dictionary files (Cisco, Quintum). Works with other NASes, supporting Cisco style VSAs: GnuGK gatekeeper, Mera MVTS (including SIP-HIT module), Nextone.
Very easy to use custom module interface
Comfortable framework for building RADIUS applications
Logging of received, failed and rejected requests to seperate files for easier later processing
Storing RADIUS server client data into database. It may be very helpful in large setup environment.
Platform independent (however, not tested on Windows yet)
Ready to use CLI RADIUS client
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BSDRadius
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