"Asterisk was first released in October 1999 and now
claims some two million downloads for this year alone -- up from
1.5 million last year.
"In its early years Asterisk attracted contributors out of
interest, but nowadays large companies are getting behind the
project with specific needs. And the place where Asterisk is making
most in-roads is with replacement of incumbent systems and
businesses getting started with IP telephony.
"According to research by the Eastern Management Group, in the
US open source as a whole was the number one supplier of VoIP lines
for 2008 and Asterisk was number two behind Nortel. And Asterisk
claims just under 90 per cent open source PBX market."
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