Product Catalog: Mitel Networks: Communications Software Products Mitel Communications Director (10 to 65,000 users) (Mitel) Mitel Communications Director call control software allows you to operate your communications system with flexibility, ease, and reliability. View Details Mitel Multi-Instance Communications Director (Mitel) Mitel Multi-Instance Communications Director delivers multiple instances of Mitel's award-winning Mitel Communications Director call control software on a single industry standard server. View Details