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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
FreeSWITCH
FreeSWITCH is an open source telephony application written in C, built from the ground up and designed to take advantage of as many existing software libraries as possible. FreeSWITCH makes it possible to build an open source PBX system or an open source voip switching platform as well as unite various technologies such as SIP H.323, IAX2, LDAP, Zeroconf, XMPP / Jingle etc. FreeSWITCH can also be used to interface with other open source PBX systems such as OpenPBX, Bayonne, YATE or Asterisk.
FreeSWITCH supports multiple sampling rates and even had the ability to bridge calls with unlike sample rates in real time. Portable cross platform code is foremost on the list of requirements which has paid off with support for Windows, MacOSX and many versions of Linux on varying numbers of processors both 32 and 64 bit. External data access and cluster ability has been planned for since day one and the module interfaces are designed to bring existing technology into the core by providing a gateway from existing libraries.
FreeSWITCH supports multiple sampling rates and even had the ability to bridge calls with unlike sample rates in real time. Portable cross platform code is foremost on the list of requirements which has paid off with support for Windows, MacOSX and many versions of Linux on varying numbers of processors both 32 and 64 bit. External data access and cluster ability has been planned for since day one and the module interfaces are designed to bring existing technology into the core by providing a gateway from existing libraries.
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