By Aaron Huslage
The world of open source VoIP platforms has been dominated by the Asterisk PBX and the products that surround it. While no one has perfect market share numbers for this beast, it has more than likely over 95 percent of the open source share and some significant portion of IP PBXs installed around the world. As Om Malik wrote in late 2007, Asterisk has been downloaded over 1 million times.
Now, another player could give Asterisk a run for its money. Announced at the Emerging Telephony conference in 2006, Freeswitch is quietly growing in popularity and stability.