Magic Jack for business. With old phone company i had a rollover number, can magic jack do the same?

Magic Jack does not support any smart forwarding solutions such as follow me, or simultaneous ring. In addition, you will need the MJ plugged into a comptuer, and only 1 can be on a computer. Therefore, if you were getting two of them, you will need two PCs. With the extra demand on resources, this is not a wise decision. I will recommend looking into SIP service that will support your needs. If you are trying to keep costs down, this might be of interests. In addition, MJ does not support porting your phone number (taking your phone number with you). If you use SIP, you will have more flexibility. Really advanced features will be best with an IAX (such as Asterisk) which will require an IAX server, but can serve many phones, and many SIP providers.

If the whole point was saving money, Magicjack wasn't the answer. Try Phone Power. Two lines, the ability to hunt (dogs rollover) and local number portability in most cases. http://www.phonepower.com/voiphome.aspx The last time I checked, they will let you try it and convert it to the annual payment within 30 days if it works for you. It will be about $240 for a 24-month service.