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IP Telecommunication

. . . . Time Division Multiplexing (TDM )Voice Network . University of Michigan. PBX. Call Center. PSTN. IVR. Billing. Provisioning. . Voicemail. . . . . . Call Control. System Manager. Switching fabric. . University of Michigan. TDM Voice System Architecture. Centralized Services

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IP Telecommunication

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    1. IP Telecommunication The Promises and the Challenges

    2. Time Division Multiplexing (TDM )Voice Network

    3. University of Michigan TDM Voice System Architecture Centralized Services & Infrastructure Administration Call control, Call Processing Dial Plan Billing Voicemail Call Centers 350+ Call Features Carrier Termination Point 18Kft loop limit

    4. University of Michigan TDM-Pros Matured technology Standard based analog phone support Meets 95% of user basic voice needs Dedicated voice network Meets regulatory requirements (E911, CALEA) End to End Guaranteed Bandwidth Reasonably Good Security Support model in place Management model well understood Trained Staff

    5. University of Michigan TDM-Cons Large capital investment in new cable plant Costly environmental requirements ?? Centralized Redundancy ?? Maintain dual Physical Networks (Voice/Data) Long lead time for new feature development High cost for moves, adds and changes Costly to add new lines and applications Proprietary Signaling for enhanced phones High cost for “One of a Kind” features

    6. VOICE OVER INTERNET PROTOCOL

    7. University of Michigan IP Telephony Building Blocks

    10. University of Michigan

    11. University of Michigan

    12. University of Michigan

    13. University of Michigan

    14. University of Michigan

    15. Campus Data Network Model

    16. University of Michigan Nortel SIP Trial Production (50 users)

    17. University of Michigan

    18. University of Michigan Flexible Administrative Boundaries Intelligent End Points Single Dial Plan for Voice, Video and Collaborative Applications Standard based Signaling Protocol Codec Choices End Point Choices Call routing and feature control with user Reduced raceway requirements

    19. University of Michigan

    20. University of Michigan

    21. University of Michigan Location identity requirements Integrated management Training for support staff Facilities and Environmental requirements Centralized vs. Distributed Management Model Centralized services (VM, database, L.D. LXC etc) Maintaining existing Dial Plan New business application

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