Pompano Beach, FL
Been there done that..
Already have a similar solution.. Cost me around $48 in hardware and ~$6.60/mo.
Tracfone w double minutes, w376g($30) + 1 yr service(800-1000minutes)($80)
Siemens Gigaset One Blue Tooth gateway. $18.. (Officemax closeout)
I have text messaging when needed, caller logs, 7 day battery backup(cell phone).
All the features listed by At&t.. caller-id(numbers only), call waiting..
Plus the Gigaset one/(Xlink BTTN) links up to three cell phones to your home phones. Long distance+60 countries calling just uses normal air time.
I use Skype on my PC to dial toll free numbers.. (no charge)..others 0.02$ min..