Groupon offers the Ooma Telo VoIP Phone System, model no. 100-0201-300R, for $49.99 with free shipping, with a required-at-activation Ooma Premier 10-Month Subscription (which will add $9.99 per month). That's tied with last week's mention as the best price we've seen for this device. (It's also a current price low by $59.) It offers unlimited calling to any number in the US via your broadband Internet connection. It features caller ID and a landline backup option. Deal ends November 12 at 2 am ET.