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IP TAX.ppt

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IP TAX.ppt

  1. 1. IP TAX IN BSNL
  2. 2. Class 4 Switch • Commonly known a “Long Distance” switch or TAX • Primarily interconnects with E1 lines and larger • Owned and operated by LD carriers • Interconnected to other class 4 switches and Class 5 switches. • Provide the backbone of the PSTN
  3. 3. Class 5 Switch • Commonly known as a “Local” switch • Provides local phone service to a metropolitan area. • Examples are a 5ESS or OCB-283 • Handles a large number of individual phone lines. • Provides enhanced features such as call waiting, 3 way calling and caller ID.
  4. 4. Matured TDM Services & NGN softswitch SIP based terminals served with soft switch IP RSU Class 5 PSTN RSU Mature TDM Class 5 RSU NGN Class 4
  5. 5. Multimedia(NGN) + PSTN interworking MGC/Softswitch for PSTN interworking SIP based terminals served with Softswitch RSU Class 5 PSTN RSU TGW/ MGW RSU Class 5 IP softswitch
  6. 6. Multimedia + C5 overlay Softswitch full C5 feature set RSU Class 5 PSTN RSU TGW RSU Class 5 IP Introduction of overlay C5 services Migration of C5 customers from PSTN network to C5 overlay softswitch Line Access Gateways Conventional Phone service Native IP Phone Service
  7. 7. Multimedia + C5 overlay + migration installed base IP softswitch RSU PSTN RSU RSU C-AGW CO migration Re-use of investment: TGW transformed to centralized AGW Re-use of PSTN equipment: Connected to packet network via centralized access gateway Softswitch full C5 feature set
  8. 8. RSUs as Access Gateway IP softswitch Conversion of RSUs as fully IP capable and in direct control of Softswitch Softswitch full C5 feature set AGW AGW AGW LAG AGW
  9. 9. Current TDM TAX Networking TDM TAX-I TDM TAX-I TDM TAX-I TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II LE LE LE LE LE LE LE LE LE LE
  10. 10. Co-existence of TDM and IP- TAX Soft Swicth TMGW TMGW TMGW TMGW TDM TAX-I TDM TAX-I TDM TAX-I Soft Swicth TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II
  11. 11. Co-existence of TDM and IP- TAX Soft Swicth TMGW TMGW TMGW TMGW Soft Swicth TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TMGW TMGW TMGW
  12. 12. Co-existence of TDM and IP- TAX Soft Swicth TMGW TMGW TMGW TMGW Soft Swicth TDM TAX-II TDM TAX-II TDM TAX-II TDM TAX-II TMGW TMGW TMGW LE LE LE LE LE LE LE LE LE LE TMGW TMGW TMGW
  13. 13. Class 4 NGN Soft Swicth TMGW TMGW TMGW TMGW Soft Swicth TMGW TMGW TMGW LE LE LE LE LE LE LE LE LE LE TMGW TMGW TMGW TMGW TMGW TMGW TMGW LE LE LE LE LE LE LE LE LE LE Soft Swicth Soft Swicth
  14. 14. Class 5 NGN Soft Swicth AGW LGW LGW AGW Soft Swicth LGW AGW RSU ADSL/ADSL2+ AN SIP Telephone
  15. 15. Migration Steps • Introduce IP in Transit network at Level-1 TAX locations (IP TAX Project) • Extend IP network to Level-2 TAXs and large scale implementation in Access Network • Develop MPLS core at Circle and LDCA Level • Offer Voice and Multimedia services to Broadband Subscribers using DSL, Optical Ethernet technologies
  16. 16. IP TAX Project
  17. 17. • In BSNL a pilot project of 200KC of IP TAX was processed. • PO was placed to M/s ZTE through M/s SOTL. • Validation at New Delhi and Chennai sites was done. • IP TAX is the first step of migration towards NGN for BSNL • Subsequently a new tender of 6 million IP TAX is also under process. IP TAX Project
  18. 18. 18 Scope of 6 M IP TAX Project • The equipment to be supplied in two phases through Tender 3160 KC to be supplied in Phase-I and 1708 KC in Phase- II • 1608 KC to be supplied through PSU Reservation Quota (M/s ITI with M/s Huawei as Solution and Equipment Provider) • All Level-I and Level-II TAX Sites to be covered though 6476 KC Project
  19. 19. NMS SG Softswitch (MGC) Softswitch (MGC) SG ISUP/SCTP SIP-T ISUP/SCTP STP SS7 SS7 H.248 MG Bearer Channels CORE IP BACKBONE NETWORK MG IP/RTP NTP SERVER H.248 STP PSTN PSTN Bearer Channels GENERIC REFERENCE DIAGRAM FOR ‘IP BASED TAX’ SS7 SS7 Q.1912.5 ANNOUNCEMENT SERVER ANNOUNCEMENT SERVER
  20. 20. Scope of IP TAX Project • Setting up Two Soft Switches at New Delhi and Chennai and Signalling Gateways at New Delhi, Chennai, Kolkotta and Bangalore • Providing Trunk Media Gateways (TMGs) at 21 Level-1 locations • Providing one Announcement Servers in each IP domain • Billing interface to Centralized Billing Server • NMS complete with FCAPS capabilities (Fault,Configuration,Accounting,Performance,Security)
  21. 21. 0 Existing STP N/w BSNL’s MPLS Core Chennai NMS ENK CBT CHN HYD RPR BG MBI BPL AHM JPR ND JLN LW PT KOL GU Soft switch (MGC) SG AS EMS New Delhi MG MG MG MG MG MG MG MG MG MG MG MG MG MG MG MG MG MG MG AG AM RJ MG CK NGP MG Soft switch (MGC) SG AS EMS
  22. 22. IP TAX CAPACITY(KC) Agra 4 Ahmedabad 8 Ambala 4 Bangalore 12 Bhopal 4 Chennai 16 Coimbatore 4 Cuttack 4 Ernakulam 4 Guwahati 4 Hyderabad 8
  23. 23. IP TAX CAPACITY(KC) Jaipur 4 Jalandhar 4 Kolkata 16 Lucknow 4 Mumbai 40 Nagpur 4 New Delhi 40 Patna 8 Raipur 4 Rajkot 4 Total 200
  24. 24. Signaling Gateway AT 4 Locations 1. New Delhi 2. Chennai 3. Kolkata 4. Banglore
  25. 25. Overview of NOC Site - Chennai SSW NMS LAN SW AS SGW TMG STP PSTN/PLMN E1/STM-1 Gig-E FE FE FE MPLS Edge Gig-E PSTN Local Terminals Billing System PLMN
  26. 26. Overview of Soft Switch Site - New Delhi SSW LAN SW AS SGW TMG STP PSTN/PLMN E1/STM-1 Gig-E FE FE FE MPLS Edge Gig-E PSTN Remote NMS Terminals PLMN
  27. 27. Overview of SGW Site – Bangalore & Kolkatta LAN SW SGW TMG STP PSTN/PLMN E1/STM-1 Gig-E FE MPLS Edge Gig-E PSTN Remote NMS Terminals PLMN
  28. 28. Overview of Other 17 Level-I Sites LAN SW TMG E1/STM-1 Gig-E MPLS Edge Gig-E PSTN Remote NMS Terminals PLMN

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