Transcript Data/Voice/Video Integration

http://silver.kpnqwest.fi/SMI-VoIP.ppt
Next Generation IPTelephony
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
– PPP (over Sonet/xDSL/…)
– 802.11 WLAN
– Ethernet
– Etc...
Why IP?
• Public standards
–Internet success
–Volume of equipment sold
–Application expandability
• video
• whiteboard
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
• 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
• Price
–TODAY: equipment cost comparable to oldworld
–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
• 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
• 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?
• 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
Source: Frost and Sullivan 1999
Market Opportunity
B US$
70
60
50
Opportunity
40
30
20
10
0
1996
1997
1998
1999
Data Networking Market
Voice Applications Market
2000
2001
Voice Over IP Market
2002
Packet Voice Velocity
Toll Bypass
Through the Chasm
Enterprise Packet
Voice Applications
Mass Deployment
The Real Reason
• Voice over IP takes telephone
communications to the Internet
innovation rate
IP telephony network
IP
172.16.34.4
PSTN
Customer
siteb 21
IP-telephony
server farm
22
KPNQwest
CoS enabled
IP
172.16.34.6
IP
IP network
172.16.34.5
42
IP-telephony service farm
(IVR, ACD, Conferencing, etc.)
23
Jyväskylä
IP
172.16.33.7
41
IP
172.16.33.8
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
Turku
Signaling/
route server
KPNQwest
ISP B
Signaling/
route server
Helsinki
51 52
53
New Age – New Rules
• Voice is not the only service : IP telephony
means multimedia services
• VoIP will be the first service to be deployed as
an IP real-time communications service, but
other will follow
–videophone
–videoconferencing
–collaborative working, ...
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
• Full service provider based telephony
–only terminals(phones) and maybe a faxgateway 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
• 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
• 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
• Full communications integration
–voice
–video (desktop + room-based)
–collaboration
–online presentations
–mobile
• All of the above combined FINALLY enable a
virtual workplace
Q&A!
Petri Helenius
[email protected]
http://silver.kpnqwest.fi/SMI-VoIP.ppt