A Legacy of Service

PRO OnCall Technologies has compiled a rich history that began over 70 years ago. We’ve grown into a regional leader by merging the resources of three premier companies – Digital & Analog Design, IDeACOM (formerly Executone), and PC On Call. The mergers have enabled us to expand our product and service offerings, and improve our response time to onsite support calls.

Leadership & Experience

Today, PRO OnCall supports over 10,000 private and public sector customers – from small businesses with 5 employees to enterprises with thousands of users in locations across the country. Our clients represent every major industry vertical and business model. They depend on our proven expertise to implement industry-leading IT and Voice solutions that keep them competitive.

Your Technology Partner

PRO OnCall strives to implement the best technology solutions for the specific needs of your business. As we grow, we stay focused on serving you – building on our record of personalized strategic planning, single-source IT and Voice solutions, and exceptional customer support.


2011 – Celebrated 30 years with Toshiba
2009 – PRO OnCall Technologies and Digital & Analog Design merged
2007 – PC On Call and IDeACOM merged to form PRO OnCall Technologies
2001 – Executone became IDeACOM
1996 – PC On Call was founded
1981 – Digital & Analog Design was established
1946 – Executone of Dayton opened for business
1936 – Executone of Cincinnati opened for business