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http://silver.kpnqwest.fi/SMI-VoIP.ppt. Next Generation IP-Telephony. Petri Helenius Director, Product Development [email protected] 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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Presentation Transcript
why ip
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...
why ip1
Why IP?
  • Public standards
    • Internet success
    • Volume of equipment sold
    • Application expandability
      • video
      • whiteboard
challenges
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
challenges ii
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
challenges iii
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
short history of ip telephony
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
short history ii
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
why now
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)
ip telephony market
IP Telephony Market

Source: Frost and Sullivan 1999

market opportunity
Market Opportunity

B US$

Opportunity

packet voice velocity
Mass Deployment

Toll Bypass

Enterprise Packet

Voice Applications

Packet Voice Velocity

Through the Chasm

the real reason
The Real Reason
  • Voice over IP takes telephone communications to the Internet innovation rate
ip telephony network
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

service provider based telephony routing
Service provider based telephony routing

Signaling/

accounting/

route server

KPNQwest

ISP B

Signaling/

route server

Helsinki

51

52

53

expanding towards public ip telephony network
TurkuExpanding towards publicIP telephony network

Signaling/

route server

KPNQwest

ISP B

Signaling/

route server

Helsinki

51

52

53

new age new rules
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, ...
new rules ii
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
immediate future
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
benefits of service provider based ip telephony
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
considerations for ip telephony rfp
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
next steps
Next steps
  • Full communications integration
    • voice
    • video (desktop + room-based)
    • collaboration
    • online presentations
    • mobile
  • All of the above combinedFINALLY enable a virtual workplace
slide23

Q&A!

Petri Helenius

[email protected]

http://silver.kpnqwest.fi/SMI-VoIP.ppt

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