1 / 23

Next Generation IP-Telephony

Explore the evolution and integration of IP telephony for enhanced communication, cost savings, reliability, and scalability. Learn about the challenges and benefits, market trends, and considerations for implementing IP telephony solutions.

antoniojoseph
Download Presentation

Next Generation IP-Telephony

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related