Comdial was at a time one of the most well known and widely used business phone systems as a result there are many Comdial systems in use still today. Comdial Business Phone Systems has been defunct for 15 years as a reslut finding a company that still does/can support Comdial in Phoenix or any area can be extremely difficut. Phoenix Business Systems has Comdial technicians on staff and can assist Comdial Office Phones System users with moves, adding and removing extensions, and different configuration changes. For repair, service and support on your organizations Comdial PBX phone system please reach out to Phoenix Business phone Systems here in Phoenix .