ERS Wireless Share: Communications ERS Wireless Visit Website 1815 21st Street Columbus, IN 47201 (812) 376-9652 (800) 475-3320 (812) 376-9729 (fax) http://www.ers-oci.com/ Hours: Monday - Friday 8 a.m - 5 p.m About Map About Emergency Radio Service, Llc. (dba ERS) is a technology services company with expertise in wireless voice, data, and video solutions. We are a Motorola Solutions Channel Partner What's Nearby? Distance: 5 10 15 20 25 50 mi.