3CX VoIP System
I would have to say that I like it very much.
I tried out Asterisk, but there were just to many risks with that and lots of reading to do.
I like that so many things are already configured and all you have to do is run a wizard.
I also like that it runs on Windows and that I don't have to mess with Linux.
I am a former SGI IRIX administrator, but it's been years and I have forgot most of that.
I took me 2 days, but I figured out how to make my inter-tel 8622 VoIP phone work with 3CX in SIP mode. (I posted my work on the forum at 3CX)
It's kind of limited, so I might still sell the 8622 on ebay and just get a Polycom Soundstream IP 330. That phone looks the best to me for the job. Price is around $119 and it has two ports so that I don't need a switch at every desk.
Interfacing the 3CX with Exchange 2007 UM was easy! I had it done in about 15 minutes.
The only step they left out was creating a SMTP connector so that the UM features can send the Hub Transport (on the same server!) the voicemails and faxes. (Look in the Event viewer if you don't get your voicemails)
I'm going to double the memory in my Exchange Server from 8GB to 16GB since it's almost maxed (The 8GB) at 125 mailboxes and now I'm going to add UM to all that!
I have a PRI that runs over a T1 to my Inter-tel system and I'm wondering if I can replace that with a SIP VoIP trunk and skip the PRI and gatway. I have comcast with a 20MB connection. Anyone else try this? I need to find out what our real usage is. What if we only use 25% of that T1???