Outreach, Education, Installations. We go to bat for people with hearing loss who are in need of captioning telephones. O.E.I. works on behalf of CapTel, an American made captioning phone by Ultratec. An original leader and the inventor of captioning technology, who for the last 13-14 years has pursued changing lives for people who have trouble hearing on the telephone. O.E.I. represents honor, commitment, integrity, and heart. It's ALL ABOUT the customer, not quotas.