OOMA is $3.98 to 19.98 per month, plus $129.99 for unit.
Magic Jack is $99.75/ 5 years = $1.67 per month, or $35 per year = $2.92 per month.
Magic Jack unit is $60 one time. Do the math. I rarely get scam calls on my MJ lines.
The quality is so good I use one just for my fax machine.
In Canada a Magic Jack is $20. a year ONLY if you take it for 5 years. Otherwise one year is $35.00. Then the cost of a Canadian phone number is $10.00 a year. There is no 911 service unless you pay extra for it. Let's also not forget that all prices are US dollars, and they have service fees for each purchase. Number, MJ, & 911. Before anyone makes a purchase - do your research.
Got the same number on my cell, but didn't answer because it was an "unknown" number. Do not risk your cell being identified scammers by actually answering unknown numbers on your cell. If you do not know the number or caller just do not answer. That way you avoid the b.s. with that call, but all the b.s. and scams you will get from it later.