Tracked by Evreward since 2005, Verizon Voicewing VOIP offers coupons and cash back rebates. Verizon Voicewing VOIP discount coupons are rare, only available once or twice a year. Even when Verizon Voicewing VOIP doesn't have a coupon, you can always get up to $150 cash back, and other great rewards, with every purchase.