Lots of companies (mine included) use OpenH323 for production telephony. Our system routes tens of thousands of calls per day, and it uses Linux, MySQL, OpenH323, Apache and lots of other Open Source software. Disclaimer: I am one of the co-authors of OpenH323
VoIP using only Open Source isn't new, nor is interoperability with Cisco equipment, nor is SIP, or even embedded VoIP using Linux.
The OpenH323 Project (http://www.openh323.org) has had a H.323 protocol stack availble since 1999. This stack works with Cisco gear and most other commercial H.323 products, and works on Linux, *BSD, Windows and other systems.
A full GUI Linux client using this stack can be found at http://www.gnomemeeting.org.
There is also a SIP stack available as part of the OPAL Project available from the same site. Others are also available (see http://www.vovida.org) for one example.
Lots of companies (including my own) have been doing "real" VoIP using Open Source for years.
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Lots of companies (mine included) use OpenH323 for production telephony. Our system routes tens of thousands of calls per day, and it uses Linux, MySQL, OpenH323, Apache and lots of other Open Source software. Disclaimer: I am one of the co-authors of OpenH323
VoIP using only Open Source isn't new, nor is interoperability with Cisco equipment, nor is SIP, or even embedded VoIP using Linux.
The OpenH323 Project (http://www.openh323.org) has had a H.323 protocol stack availble since 1999. This stack works with Cisco gear and most other commercial H.323 products, and works on Linux, *BSD, Windows and other systems.
A full GUI Linux client using this stack can be found at http://www.gnomemeeting.org.
There is also a SIP stack available as part of the OPAL Project available from the same site. Others are also available (see http://www.vovida.org) for one example.
Lots of companies (including my own) have been doing "real" VoIP using Open Source for years.
(Disclaimer: I'm one of the authors of OpenH323)