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Next Generation IP-Telephony

http://silver.kpnqwest.fi/SMI-VoIP.ppt. Next Generation IP-Telephony. Petri Helenius Director, Product Development pete@kpnqwest.fi. Why IP?. Only single network to manage Cost savings Management Monitoring Change flexibility Runs over a variety of transports ATM Frame relay

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Next Generation IP-Telephony

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  1. http://silver.kpnqwest.fi/SMI-VoIP.ppt Next Generation IP-Telephony Petri Helenius Director, Product Development pete@kpnqwest.fi

  2. Why IP? • Only single network to manage • Cost savings • Management • Monitoring • Change flexibility • Runs over a variety of transports • ATM • Frame relay • PPP (over Sonet/xDSL/…) • 802.11 WLAN • Ethernet • Etc...

  3. Why IP? • Public standards • Internet success • Volume of equipment sold • Application expandability • video • whiteboard

  4. Challenges • Reliability • Achieved by both clustering servers and duplicating infrastructure • At the end of the day, VoIP can be engineered more reliable than PSTN telephony • Ease of use • Migration and learning issues addressed by retaining the familiar interface (desktop phone) while adding functionality to both the device and software on the desktop

  5. Challenges II • Perceived voice quality • Due to the digital nature of VoIP, quality, when riding on a well engineered network is superior to mobile telephony, very close to PSTN • Public Internet not there yet, don´t confuse VoIP with Internet telephony (although they will converge) • Scalability • Systems must deliver scalability to thousands of subscribers on a single system

  6. Challenges III • Price • TODAY: equipment cost comparable to old-world • 20% annual price erosion • Operational cost lower • Change management • Install IP telephony with all new installations • Comprehensive integration tools just becoming available

  7. Short history of IP-telephony • 1997: Toll bypass • Gateway - Gateway • Target market: International • Benefit: cost savings • Still available today • 1998: Complementing traditional telephony • Gateway - Phone, Gateway - Gateway • Target market: branch offices, teleworkers • Benefits: flexibility, low entry cost, manageability

  8. Short history II • 1999: From integration to migration • Advanced reliability and flexibility • Target market: all • Benefits: comprehensive selection of applications, flexibility, manageability, cost savings • 2000: Service provider tools and equipment • Enables providing hosted enterprise-class telephony solutions • No need to dedicate equipment or servers on per-customer basis

  9. Why now? • Pieces of the puzzle are all available • local LAN (power and CoS enabled switches) • CoS/QoS functionality in routers across the board • CoS/QoS functionality in backbone • redundant, scalable and manageable servers • high density PSTN gateways • IP enabled applications • commoditization of IP bandwidth • (will probably never happen with PSTN)

  10. IP Telephony Market Source: Frost and Sullivan 1999

  11. Market Opportunity B US$ Opportunity

  12. Mass Deployment Toll Bypass Enterprise Packet Voice Applications Packet Voice Velocity Through the Chasm

  13. The Real Reason • Voice over IP takes telephone communications to the Internet innovation rate

  14. IP 172.16.34.6 IP 172.16.34.5 IP 172.16.33.8 IP 172.16.33.7 IP 172.16.34.4 IP telephony network PSTN Customer siteb IP-telephony server farm 21 23 22 KPNQwest CoS enabled IP network 41 42 IP-telephony service farm (IVR, ACD, Conferencing, etc.) Jyväskylä

  15. Service provider based telephony routing Signaling/ accounting/ route server KPNQwest ISP B Signaling/ route server Helsinki 51 52 53

  16. Turku Expanding towards publicIP telephony network Signaling/ route server KPNQwest ISP B Signaling/ route server Helsinki 51 52 53

  17. New Age – New Rules • Voice is not the only service : IP telephony means multimedia services • VoIP will be the first service to be deployedas an IP real-time communicationsservice, but other will follow • videophone • videoconferencing • collaborative working, ...

  18. New Rules II • IP Telephony will allow new ways to communicate • “Surf and phone” • “Click and phone-communicate” • IP Telephony is a technology facilitating introduction of new sophisticated services • Benefit from an ever-wider base of existing applications (IP-software development) • Benefit from the universal IP addressing scheme • Benefit from IP security mechanisms • end-to-end secure telephony

  19. Immediate future • Full service provider based telephony • only terminals(phones) and maybe a fax-gateway box on site • rapid deployment • instant moves and changes • low TCO • Various terminals • softphones • IP desktop phones • mobile integration

  20. Benefits of Service Provider BasedIP-telephony • No capital investment into PSTN gateway equipment • No capital investment into server equipment • Least cost routing done by service provider • preferences can be set by the customer • Up and downscaling robust (within minutes) • mergers • subsidiary selloff • functional reorganization • physical site changes

  21. Considerations for IP Telephony RFP • How the QoS/CoS is done in the network? • Local tail redundancy options • Cost of upgrading the local tail • Server redundancy • Service redundancy (availability %) • on-net tariffs • off-net tariffs to your usual destinations • statistics / detail records • total cost of a seat

  22. Next steps • Full communications integration • voice • video (desktop + room-based) • collaboration • online presentations • mobile • All of the above combinedFINALLY enable a virtual workplace

  23. Q&A! Petri Helenius pete@kpnqwest.fi http://silver.kpnqwest.fi/SMI-VoIP.ppt

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