5. family tree openpbx telephony free and open source proprietary asterisk gnu bayonne yate astlinux trixbox xorcom rapid xorcom rapid elastix VoIPonCD
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18. open source maturity model OSMM is a trademark of Navica . A chart like this will make you a hero at work. PHB image used without permission
30. dev kit used in demo TDM400P from Digium Photo from http://www.marlow.dk/images/asterisk/tdm400p-fxo-small.jpg IAXy S101 from Digium Photo from http://www.voip-info.org/users/385/25385/images/618/IAXy.jpg