January 07, 2009
FreeSWITCH Teams with Polycom to Deliver New VoIP Features
By Tim Gray, TMCnet Web Editor
FreeSWITCH has released version 1.0.2 available after more than five months of retooling by the development team and community.
The group teamed with Polycom (News - Alert) to produce new VoIP features into FreeSWITCH program including providing users with access to Polycom's wideband (WB) and ultra-wideband (UWB) Siren family of codecs.
FreeSWITCH now supports both wide and narrow band codecs with the ability to bridge legacy devices to the future. The voice channels and the conference bridge module all can operate at 8, 16, 32 or 48 kilohertz and can bridge channels of different rates.
FreeSWITCH is an open source telephony platform designed to facilitate the creation of voice and chat driven products scaling from a soft-phone up to a soft-switch. It can be used as a simple switching engine, a PBX (News - Alert), a media gateway or a media server to host IVR applications using simple scripts or XML to control the callflow.
Developers work in open source and donate code and other resources to other telephony projects including openSER, sipX, TheAsterisk Open Source PBX and Call Weaver.
In addition to the100 percent open-source CELT codec, it supports sampling rates as high as 48kHz , a sunbastantion pace greater than the 44.1kHz rate used by traditional CDs.
The Polycom Siren family of codecs is now offering high-quality and low-bandwidth performance that works for all audio, including music. The Siren 7 G.722.1 (16 kHz) and Siren 14 G.722.1C (32 kHz) codecs will allow FreeSWITCH users to have access to HD telephony without expensive licensing requirements, according to the company.
The codecs are designed as zero-cost alternatives to other patented technologies like G.729. As networking infrastructure it improves both in private networks and the public Internet, as well as the use of WB, UWB, and HD telephony that will become increasingly common, according to the group.
The new HD-Audio makes FreeSWITCH the only open source software capable of transcoding, conferencing and bridging of this exciting new 32khz audio format.
The FreeSWITCH development team says it will continue to handling more feature requests and bug reports from the growing community as well work on improving documentation with the addition of T.38 support to the fax module, and expanding TDM support with the OpenZAP library. Another important aspect in 2009 is growing the proverbial FreeSWITCH ecosystem.
Tim Gray is a Web Editor for TMCnet, covering news in the IP communications, call center and customer relationship management industries. To read more of Tim�s articles, please visit his columnist page.
Edited by Tim Gray