TCO Manager for Voice Telecom TCO Manager for Voice Telecom is a software modeling tool that provides decision support for measuring, analyzing and improving the Total Cost of Ownership (TCO) for your wide area voice telecom network. TCO Manager for Voice Telecom will help you to: Better understand and control the factors that can drive up your wide area voice telecom costs. Facilitate voice telecom budgeting and planning. Assess and track TCO over time. Identify TCO performance trends.   Application Bulletins Find out about the latest changes to your TCO Manager product by reviewing our regularly published App Bulletins.   Documentation Understand the TCO Chart of Accounts   Software Updates Select this item to download occasional product updates and patches. You must be a currently licensed user to apply these updates.   TCO Training Access the upcoming training calendar for your TCO Manager product. Contact Information: For more information about Gartner Decision Tools and Services please email  DTforCM@gartner.com. Related Services:   Gartner Decision Tools Alliance Program Gartner has successfully franchised its software measurement tools, methodologies and marketing solutions. Now your organization can leverage these tools and drive additional value to your clients.