About Callisma

Callisma, Inc., a wholly owned subsidiary of SBC Communications, Inc., provides world-class infrastructure consulting services. Through Callisma's skilled team of professionals, we enable today's corporations to design and deploy infrastructure that will enhance their service and business performance. Our portfolio spans strategic consulting and planning through design, integration, and optimization. By providing our clients with a broad base of technical services; a flexible, results-oriented engagement style; and the highest quality documentation, Callisma delivers superior solutionson time and on budget. Callisma's expertise includes Enterprise Operating Systems, Advanced Infrastructure, Convergence, Network and Systems Operations Management, Security, Data Center, and Project Management.