What's the current stability of the software? Is it ready for use in a "real" environment? I'm not worried so much about small quirks in the management stuff as I am in the stability of routing calls and voicemail. I'd really like to replace an Asterisk PBX we're currently using (and having trouble with) and I'm wondering if 3CX is ready for real use yet. We've got 6 PSTN lines about 8 extensions handling a couple of hundred calls a day. Obviously I'll be doing some testing, but I'd like to hear from someone that's already using it if possible. Thanks for your comments!