Communication Technologies CTI brings the highest level of Customer Services to its customers. AVAYA, Nortel and Shoretel telephone systems are installed and maintained 7X24X365 including system monitoring. CTI has its corporate offices in Falmouth, Maine and Bangor, Maine and employes 32 talanted and certified engineers, technicians and support people. CTI has 22 Service vehicles well equipped for service on the first call with critical spares for disaster recovery and complete system replacement. 207-797-9123 (O) 800-298-1187 (O) and 207-797-9103 (F).