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PSTN Migration to NGN




I Page 1 of 23   © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




Content



                                 The Path to NGN Solution


                                 MileGate/UMUX in NGN


                                 Conclusion




          I Page 2 of 23   © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




                         THE PATH TOWARDS NGN SOLUTION




I Page 3 of 23   © KEYMILE
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



        I Page 4 of 23   © KEYMILE
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




        I Page 5 of 23   © KEYMILE
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




            I Page 6 of 23          © KEYMILE
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




                             I Page 7 of 23       © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




     PSTN Migration to NGN – Architectural View

MONOLITHIC SWITCH ARCHITECTURE




               TDM Class 5
                 Switch




                  Open, standardised Interfaces
                                                            NGN ARCHITECTURE



             I Page 8 of 23       © KEYMILE
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




                    I Page 9 of 23     © KEYMILE
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




           I Page 10 of 23          © KEYMILE
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




        I Page 11 of 23   © KEYMILE
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



                   I Page 12 of 23          © KEYMILE
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


          I Page 13 of 23     © KEYMILE
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




                 I Page 14 of 23           © KEYMILE
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                  




                       I Page 15 of 23   © KEYMILE
CONTENT     SOLUTION    NGN   CONCLUSION




        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



                         I Page 16 of 23   © KEYMILE
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




       I Page 17 of 23   © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




                              MILEGATE/UMUX IN NGN




I Page 18 of 23   © KEYMILE
CONTENT    SOLUTION   NGN   CONCLUSION




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




          I Page 19 of 23          © KEYMILE
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)



         I Page 20 of 23    © KEYMILE
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




                I Page 21 of 23          © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




                              CONCLUSION




I Page 22 of 23   © KEYMILE
CONTENT   SOLUTION   NGN   CONCLUSION




   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



               I Page 23 of 23             © KEYMILE

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Back to the future with simple wholesale services nowBack to the future with simple wholesale services now
Back to the future with simple wholesale services now
 

Pstn Migration To Ngn

  • 1. PSTN Migration to NGN I Page 1 of 23 © KEYMILE
  • 2. CONTENT SOLUTION NGN CONCLUSION Content The Path to NGN Solution MileGate/UMUX in NGN Conclusion I Page 2 of 23 © KEYMILE
  • 3. CONTENT SOLUTION NGN CONCLUSION THE PATH TOWARDS NGN SOLUTION I Page 3 of 23 © KEYMILE
  • 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 I Page 4 of 23 © KEYMILE
  • 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 I Page 5 of 23 © KEYMILE
  • 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 I Page 6 of 23 © KEYMILE
  • 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 I Page 7 of 23 © KEYMILE
  • 8. CONTENT SOLUTION NGN CONCLUSION PSTN Migration to NGN – Architectural View MONOLITHIC SWITCH ARCHITECTURE TDM Class 5 Switch Open, standardised Interfaces NGN ARCHITECTURE I Page 8 of 23 © KEYMILE
  • 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 I Page 9 of 23 © KEYMILE
  • 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 I Page 10 of 23 © KEYMILE
  • 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 I Page 11 of 23 © KEYMILE
  • 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 I Page 12 of 23 © KEYMILE
  • 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 I Page 13 of 23 © KEYMILE
  • 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 I Page 14 of 23 © KEYMILE
  • 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  I Page 15 of 23 © KEYMILE
  • 16. CONTENT SOLUTION NGN CONCLUSION 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 I Page 16 of 23 © KEYMILE
  • 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 I Page 17 of 23 © KEYMILE
  • 18. CONTENT SOLUTION NGN CONCLUSION MILEGATE/UMUX IN NGN I Page 18 of 23 © KEYMILE
  • 19. CONTENT SOLUTION NGN CONCLUSION 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 I Page 19 of 23 © KEYMILE
  • 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) I Page 20 of 23 © KEYMILE
  • 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 I Page 21 of 23 © KEYMILE
  • 22. CONTENT SOLUTION NGN CONCLUSION CONCLUSION I Page 22 of 23 © KEYMILE
  • 23. CONTENT SOLUTION NGN CONCLUSION 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 I Page 23 of 23 © KEYMILE