© 2002, Cisco Systems, Inc. All rights reserved. 111 Cray Inc. ROI Case Study Deployment Details Global market leader in high-end supercomputers Multi-site deployment Replaced existing PBX with IP Telephony 650 phones Required data network upgrade to handle time-sensitive voice traffic ROI Findings Payback—7 months ROI Drivers: Cost of Cisco IP Telephony and data gear cost the same as PBX Improved productivity of network support staff by 33% Reduced MAC’s costs by $30K/year Reduced inter-office calling charges by $25K/year ROI Calculator Summary Sheet

© 2002, Cisco Systems, Inc. All rights reserved. 222 Screenshot of ROI Summary Deployment Details Single-site educational institution 720 phones Old environment consisted of a mix between Centrex and PBX Analysis includes costs of data network upgrade ROI Findings Payback – 8 months Total Technology Benefit- $1.4M over 5 years ROI Drivers: Saved $800K in PBX equipment, maintenance and installation costs Able to significantly improve communication services to students that generated $324K of revenue per year Reduced Moves, Adds and Changes by $24K annually Menlo College ROI Case Study

© 2002, Cisco Systems, Inc. All rights reserved. 333 Actual ROI Results for Cisco EMEA: FY FY Business Benefit of Cisco IP Telephony (Relative Scale) 2005 IP & Web Foundation Expanded to Include Voice Deployment of Converged E-Business Applications: Year Net Benefit (US$) $2.6 m =$340/emp. $12.4m =$1625/emp. $33m =$4320/emp. $9.4m =$1230/emp. $33m =$4320/emp. ROI = 126% Payback Month = 10 NPV %) = $60 million