If it is free, does it have value? Free for business application, the open source PBX also has risks, costs and limitations. I took a look at this phenomenon in my webcast, "Asterisk -- Is 'free' good ...
Do not throw away that legacy PBX yet; you can use it with SIP trunks for a quick ROI. Here's an interesting case study that I received from a reader and VoiceCon attendee, Todd Vinciguerra, ...
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