a PBX gives you a lot more features and flexability. For example, you can program what lines will ring on what extentions at certain times, Different ring pattern for each line, central CID so all phones share the same info and can returns calls from CID, Voicemail notification on each line, can integrate a voice mail box if you want, but pricey. You can intergrate a FAX line so that you can also use it for voice when the fax is not used. A neat trick for free/low international calls from your cell is to call the PBX and get the other line which you make an outgoing call on your international line(you conference yourself with 2 lines from the pbx). The basic unit comes with 3 lines all with CID and 8 extention ports. You can also add doorphones and door openers so you can answer or open a door from your phone!
I am trying to figure out how to use ooma with my Panasonic KXT multi-line system. Is there a way to configure the 2 ooma lines to act like a standard telco hunt group? In other words I want incoming calls to ring on line 1 if it's not in use, otherwise ring in on line 2.
I am able to do this with vonage, but haven't found any other voip providers who can do this. Not sure yet re ooma, but figured it was worth a try.
Also, would be nice if all VM went to line 1. And is there any way to get a normal dial tine???