Based in Sumner, Iowa, we also have locations to serve you in Monticello, Lisbon, and Vinton, IA. Our business carries a large selection of phones, from the U.S. Cellular "Basic Phone" to the top-of-the-line "Smart Phones" like the Samsung Galaxy S7 and S7 Edge. At EchoVision we have so much more than just phones. We have Data Specialists that can help you find a complete solution with Home Phone, Internet, Tablets and your Cell Phone.