As soon as you receive your ooma device, go to the ooma activation page. by going to www.ooma.com and clicking on the Activate button on the top right corner of the page. It will take 5-10 minutes to complete. You will be able to select your new number as part of the activation process.
Currently we do not offer 800 numbers , but we we have a large selection of numbers to choose from. If we cannot get you a number in your desired area code, you can select a number from a nearby region. You may also consider using your existing landline with your ooma system, which will allow you to keep your existing landline phone number. You’ll get the benefits of unlimited calling in the US and absolute reliability during internet outages as well as traditional 911 service.
Links:
[1] http://www.ooma.com