Here is what I did for a friend in Minnesota.
First have a decent Internet connection.
Then go with Magic Jack Plus- $20.00/year for a non-cellular phone. Lots of pros and cons but I have it and love it.
Third get a Uniden Dect 6.0 cordless phone system. It will connect to both your land line (the Magic Jack) and your Bluetooth cellular phone.
The handset on the Uniden recognizes both phone systems. Use either for long distance or local.
Remember, Technology is your friend.