Phone, IP Business: Set of 13 Phones Model 8528 Rev A.31 Includes operators manual (business closure) $75 each or $800 for the lot ** Please reference item #230612-17215-02 when contacting us about this listing. Return Policy Items are sold as-is as described and pictured. Most items come with a 7 day option to return and a 30 day limited parts warranty. Feel free to call before you buy. 888-649-6497