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Alliance Implementation of IP TELEPHONY Voice over IP (VoIP)

Alliance Implementation of IP TELEPHONY Voice over IP (VoIP). Saeéd Hesami. Project Guiding Principles. · To achieve the business benefits · Make decisions with the constituents and for them · Provide continuous communication and document candid feedback

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Alliance Implementation of IP TELEPHONY Voice over IP (VoIP)

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  1. Alliance Implementation of IP TELEPHONYVoice over IP (VoIP) Saeéd Hesami

  2. Project Guiding Principles ·To achieve the business benefits ·Make decisions with the constituents and for them ·Provide continuous communication and document candid feedback ·To ensure the Voice over IP, video conferencing, and high transmission speed are within scope, schedule, and budget

  3. Project Objectives • Develop and test the business case and technical feasibility. • Established a hardened end-to-end network utility • Provide a converged voice and data network. • Workstation to workstation or executive to staff multicast video conferencing over IP • Provide a network that has the ability to transmit data over one GB/Per second

  4. What is IP Telephony? Compression to less than 32Kbps Transfers through Routers, LAN Switches etc, using their Protocols

  5. Why VOIP? • Cost reduction for Voice Traffic • Convergence of Voice and Data leverages infrastructure investment • Big cost reduction for intra-site fax traffic • Enables new multimedia applications to increase productivity • VoIP can save you real money.

  6. Why VOIP, Cont. • Toll reduction • Not only site to site, use packet network to bypass long distance network, and place calls from local point of presence

  7. Benefits of VOIP • Low Cost of public Internet • Long distance call for the price of local PSTN • Integration of voice and data applications • Internet–aware telephones • Intranet Telephony • Trivial implementation of existing services • Video conferencing • Voice traffic on data networks- 40% reduction in costs

  8. VoIP Placement • Telephone Replacement • IPHONE, Ethernet Phone • Transmission Substitution • Tie Line, Trunk, Loop • Switching Alternatives • PBX, CO, CENTREX

  9. “Convergence” • Adding Voice, Video, Fax to Data Network • Unified Messaging • Centralized Communication Services • Email, Telephony, Multi-media • Common Protocol (IP)

  10. Voice To/From IP Voice Analog CODEC: Analog to Digital Compress Create Voice Datagram Add Header (RTP, UDP, IP, etc) Digital

  11. Voice To/From IP Digital Process Header Re-sequence and Buffer Delay Decompress CODEC: Digital to Analog Analog Voice

  12. Short Delay Constant Delay No Loss No Retransmission Direct Pass Through Low Error Rate Reasonable Delay Variable Delay Packet Loss Retransmission Uses protocols Traditional Network Characteristics Voice Data

  13. Voice Over Networks VPN An Intranet • Inherited • Environment • No Goals • No Guarantees • Controlled • Environment • Performance Objectives • Designed to perform VPN: Virtual Private Networks

  14. Compression Reduced bps vs. Quality Silence Suppression Assumptions Signaling Functions Speed Echo Control Local Quality of Service (QoS) Toll quality Voice Enhancements Directory services Feature: CLID, Call waiting Voice Over Requirements

  15. Conclusion • VoIP is a new technology that enables voice/fax to be delivered using IP. • The driving force for the technology is to avoid long distance charges in PSTN. • VoIP is becoming a hot topic in relation to voice/data integration. • Because of the rapid growth of data network it is possible to have voice over IP • An alternative to Public Switched Telephone Network.

  16. Conclusion, Cont. • It offers Alliance exciting new added values like – telephony distance learning, phone directories, “ voice web browsing”, multicast conferencing. • Internet-aware telephones are on the horizon. • VoIP is a growing technology and very practical for medium and large companies and organizations.

  17. QUESTIONS?

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