A:Answerprobably not, don't know for sure. I think your number was probably recycled. If you purchase this phone, Ooma will give you a new number. Great purchase!
A:AnswerYes! We ported and on the announced porting day our number was switched within a few hours of the predicted time. And all our phones and alarm system work perfectly.
A:AnswerOnly 2 cables - one is the power cord and the other is an ethernet cable that runs from the back of the Ooma base station to your internet modem/router.
The handsets are wireless except for the power cords.
A:AnswerI don't know the answer to this question. However, I would expect it to be compatible. Your best bet would be to call or email Ooma to confirm.
A:AnswerAbsolutely YES. You have to pay Ooma a small fee to have the number ported over. I have done this and know several other people that have already done this.
A:AnswerDon't know about talk time, but off cradle will depend on how you set up the "display" time out. If it is set to never turn off the backlighting 75% of the charge will be used in about 5 hours with straight from the box batteries it comes with.