eOn Communications is a provider of communications solutions. Through its subsidiary, Cortelco Systems Holding Corp. (Cortelco), Co. provides commercial grade telephone products primarily for use in businesses, government agencies, colleges and universities, telephone companies, and utilities. Cortelco sells primarily through national distributors. Co.'s other subsidiary, Cortelco Systems Puerto Rico (CSPR), engages in the design, implementation and maintenance of solutions in the area of voice, data center and security. CSPR's other lines of business include the reselling of telephone lines, internet access, disaster recovery, business continuity and private cloud computing solutions.