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Similaire à Pstn Migration To Ngn (20)
Pstn Migration To Ngn
- 2. CONTENT SOLUTION NGN CONCLUSION
Content
The Path to NGN Solution
MileGate/UMUX in NGN
Conclusion
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- 3. CONTENT SOLUTION NGN CONCLUSION
THE PATH TOWARDS NGN SOLUTION
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- 4. CONTENT SOLUTION NGN CONCLUSION
The Path towards NGN Solution
NGN
Why
migrate?
migrate
Step 1
What
requirements?
requirements
Step 2
Which
architecture?
Step 3
PSTN
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- 5. CONTENT SOLUTION NGN CONCLUSION
Step 1 – Why migrate to NGN?
Telecom service provider
PSTN infrastructure renewal
Network extension: Greenfield and rural areas
Improve OPEX, reduce CAPEX
Provide new services
Virtual voice service provider
Reduce costs: Bypass other operators’ network
Provide new services (IP Centrex)
ISP/broadband provider
Extend business with voice services to broadband
customers
Extend addressable market to narrowband
customers
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- 6. CONTENT SOLUTION NGN CONCLUSION
Legacy and NGN Services of Fixed Line Operators
Legacy Services NGN Services
POTS
Voice ISDN BRA VoIP
ISDN PRA
DSL (IP/Ethernet)
Dial-In
Internet Access 100BaseT
DSL (ATM)
1 GbE
PDH/SDH (LL)
DSL (IP/Ethernet)
X.21 …
Data 100BaseT
FR
1 GbE
ATM
Relevant for Residential
Business
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- 7. CONTENT SOLUTION NGN CONCLUSION
What will be the impact of legacy voice in the operators‘ business?
Fixed retail telecom services (World)
800.000
Legacy services will not be
700.000
neglectable for many years
600.000
Legacy voice revenues will decline
500.000 sharply, but it will still deliver a major part
US$ (Mill.)
of the revenues.
400.000
Legacy data will decline smoothly
300.000
200.000
100.000
0
2005 2010
Broadband, Internet & NGN Data
NGN Voice
Legacy Data
Legacy Voice
Source: Gartner 2006 & own calculations
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- 8. CONTENT SOLUTION NGN CONCLUSION
PSTN Migration to NGN – Architectural View
MONOLITHIC SWITCH ARCHITECTURE
TDM Class 5
Switch
Open, standardised Interfaces
NGN ARCHITECTURE
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- 9. CONTENT SOLUTION NGN CONCLUSION
NGN vs. PSTN (Telephony)
TRADITIONAL ARCHITECTURE
ISDN, Q.931 Switch Fabric Signalling
NT SS7
Controller Links
Line
Cards
POTS, CAS t/r Trunk Class 5
PSTN
Cards Switch
TDM Switch
NGN ARCHITECTURE
ISDN, Q.931 Media Gateway Signalling
NT SS7
Controller Gateway
Media
Gateway
POTS, CAS t/r Trunk Class 5
Packet Network PSTN
Gateway Switch
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- 10. CONTENT SOLUTION NGN CONCLUSION
Step 2 – Which Requirements?
Increase
Revenues
&
Leverage the revenues of Profitability Implement "new"
residential and business
POTS
services
ISDN
Reduce IPTV (Triple Play)
Leased Lines
OPEX VPN
…
Maintain Increase LAN-LAN
legacy services new services …
revenues revenue
Migrate legacy services to NGN platforms
Reduce no. of operational platforms
Enhance OAM&P processes
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- 11. CONTENT SOLUTION NGN CONCLUSION
Step 2 – Reference Case
Customer
Speed to experience and
market empowerment
Cost
transformation
The transformation has a radical strategy …
Broadband everywhere…
Replacing the PSTN
PSTN transformation trial
A world first for a telecom company
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- 12. CONTENT SOLUTION NGN CONCLUSION
NGN Voice Service Provisioning
GW = Gateway
TDM POTS
GW
ISDN
Soft Switch 1
2 TDM
POTS 3
ISDN
4
H.248/SIP
Trunk GW Packet Network NT-1
Access
GW
POTS
(Core/Metro IP, MPLS)
ISDN
PSTN Signalling
GW
SIP SIP
SS7 DSL/cable
DSL/cable Residential
POTS
1 = Centralised Gateway GW ISDN
2 = Access Gateway
3 = Residential Gateway
4 = Soft Phones
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- 13. CONTENT SOLUTION NGN CONCLUSION
Step 3 – Which Architecture?
MGC
PSTN CO
MGC BICC or H.248 TG
SIP-T or SIP
SS7
SG
H.248 Packet
or SIP SIGTRAN
Network
TG/SG
NT-1
SIP or
H.323
SIP or
H.323
IP-Phone/
Multi-Media PC
Proxy- Gatekeeper
Server
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- 14. CONTENT SOLUTION NGN CONCLUSION
Step 3 – Which Architecture?
CLASS 4 NGN
Signalling Media Gateway Signalling
SS7 SS7
Gateway Controller Gateway
CO Trunk Trunk CO
PSTN Packet Network PSTN
Switch Gateway Gateway Switch
CLASS 5 NGN
ISDN/ POTS/
Q.931 Signalling Media Gateway Signalling CAS t/r
NT1
Gateway Controller Gateway
POTS/ Media Media IAD
CAS t/r Gateway Gateway Residential
Packet Network
gateway
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- 15. CONTENT SOLUTION NGN CONCLUSION
Access Gateway Architecture – Distributed vs. centralised
Application
Server
Continuity of service
Distributed PSTN, SS7 interworking
MGC
Access Gateway
Packet Costs ?
swiched
Application
Server network
MGC
AG
Metro
Packet network
swiched
network
AG
AG
∎ New services
∎ Broadband services
∎ Triple Play
Centralised Access
Continuity of service
PSTN, SS7 interworking Gateway
Costs
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Advantages – Distributed Access Gateway
Continuity of service
Distributed Keep the phone, no re-cabling
Access Gateway Keep the service
No impact on end user
Application
Server
MGC
PSTN, SS7 interworking
Signalling gateways
Packet SIGTRA
swiched
network
AG Costs
Less network element
AG Low incremental investment
Improve network availability
More efficient transmission capacity
1. Local Call Routing
Local call routing
2. Compression
Compression
New revenue
Broadband services
Triple Play
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- 17. CONTENT SOLUTION NGN CONCLUSION
KEYMILE’s Ways to NGN Voice
KEYMILE provides two platforms to support the
migration of legacy voice
Next Generation Digital Loop Carrier (NG DLC)
UMUX
Broadband Loop Carrier (BLC)
MileGate
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MILEGATE/UMUX IN NGN
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MileGate as BLC
Core Network
Core Network
C
I O METRO
S P G Gigabit Node
S U S E Ethernet
U I x 1
P Q 2
Telephony M 1 H.248 or Soft
3 SIP Switch
POTS Voice
SUPM3: 32 POTS Ports
SUIQ1: 16 ISDN Ports
METRO/REGIONAL
ISDN NETWORK
NTBA IPSx2: H.248 or SIP
608 subscribers
ACCESS
SUBSCRIBER
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- 20. CONTENT SOLUTION NGN CONCLUSION
UMUX in Telephony NGN
Circuit Switched
Network (PSTN)
Trunk Gateway
Packet Switched
IP over Ethernet Network (IP)
ISDN PRA H.248/MEGACO
SIGTRAN
Media Gateway
ISDN BA
Controller
IVR MelCAS
E1
POTS t/r
KEYMILE offers an Access Gateway (IP Subscriber Media Gateway – IPSMG)
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- 21. CONTENT SOLUTION NGN CONCLUSION
V5.2 to MEGACO Migration in UMUX
UNEM Release R5C PSTN/ISDN
PSTN
Local
V5.x Exchange
PDH/SDH
Network
UNEM Release R7
Voice Access
Media Gateway
Controller
Voice Telephony Packet Switched
Access in NGN Network (IP)
POTS/ISDN in NGN
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- 22. CONTENT SOLUTION NGN CONCLUSION
CONCLUSION
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Conclusion
PSTN migration to NGN
NGN will happen, technology is maturing
Benefits are cost savings, new services, speed
to market
Distributed access gateway provides more
flexibility and better cost
Legacy voice services will continue to
Plan, try and deploy! represent an important revenue stream
Reduction on operational expenses
require the migration of voice services to
NGNs
Distributed access gateway provides more
NGN flexibility and better cost
KEYMILE supports VoIP Media gateways
based on H.248/MEGACO and SIP
Costs
KEYMILE provides VoIP-Media Gateway
Service New solutions on its both platforms
Continuity Revenue
MileGate & UMUX
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