NeweggFlash offers the refurbished Ooma Telo VoIP Phone System, model no. 100-0201-300R, for $79.99 with free shipping. That's tied with our mention of a refurb from a week ago as the best price we've seen without a required contract. (It's also $28 under the best price we could find for a new one elsewhere.) 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 October 22.
A 1-year warranty applies, although it's unclear who backs it.