Impact of Carrier ENUM on Intl Traffic Delivery Mikael Schachne Belgacom ICS


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Impact of Carrier ENUM on Intl Traffic Delivery Mikael Schachne Belgacom ICS

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Impact of Carrier ENUM on Intl Traffic Delivery Mikael Schachne Belgacom ICS

  1. 1. Impact of Carrier ENUM on International Traffic DeliveryMobile World Congress - ENUM Seminar18th February 2009, BarcelonaMikaël SchachneHead of Data Product ManagementBelgacom ICS Belgacom ICS Confidential
  2. 2. Agenda • Belgacom ICS at a glance • Carrier Services Overview & Evolution • Routing Options & Challenges • Assessing the ENUM Benefits • What’s Next? Belgacom ICS Confidential
  3. 3. About Belgacom ICS Belgacom ICS Confidential
  4. 4. 09-Feb-24 Belgacom ICS Confidential 5
  5. 5. Belgacom ICS Confidential
  6. 6. 12% Capacity 18% Mobile Data 43% Voice Outsourcing Voice Hubbing 27%Belgacom ICS Confidential
  7. 7. Carrier Services Overview & Evolution Belgacom ICS Confidential
  8. 8. Carrier Services• 1 agreement with the Hub (AA.7x & AA.8x)• 1 technical connection Multilateral• 1 financial relation• 1 IREG & TADIG tests Hub Provider QoS Voice Roaming SMS & MMS Testing & Transit Hubbing Hubbing Monitoring Rest of World Bilaterals Roaming or Interworking Partners Extend footprint through a single interface Belgacom ICS Confidential
  9. 9. Evolution of technologies Past (TDM) FIX/Mobile PSTN MMS SMS Current Softswitch Internet Evolution GRX VoIP (Hybrid) FIX Mobile TDM IP PSTN Future IPX Proxy 3 GPP All VoIP/DSL VoIP IPv6 IPv6 / IMS09-Feb-24 Belgacom ICS Confidential 10
  10. 10. Why Embracing NGN Technologies? Introduce new services Cost Reduction Routing Flexibility & Scalability Quality (reduce transcoding & SPOF) Convergence SS7 Call Control Processors E1 SIP/IMS Line Card Switching NGN Line Card Matrix IP09-Feb-24 Belgacom ICS Confidential
  11. 11. The IPX Model IP INTERWORKING FABRIC Multilateral & open for MNOs, FNOs and ISPs Enables cascading of payments & E2E SLAs in a secured environment1209-Feb-24 Belgacom ICS Confidential
  12. 12. The IPX Road • Commercial IPX will start mid 2009 • PVI (Packet Voice Interworking) is the main driver for 2009. SIP-I driven. • GRX & MMS will be integrated into IPX • Market evolving towards IP and new IMS services • Existing services (Voice) • New services (IM, Video/Image Sharing, PoC, Gaming) • Create new Revenues via new services and new type of SPs • Opportunity to develop new Hubbing services09-Feb-24 Belgacom ICS Confidential
  13. 13. IPX Challenges • IPX is new : prove the telecom world that it can work • SIP URI Routing & MNP • Introduce E2E & IP Quality of Service • Setup monitoring architecture (KPI/SLA) • Vendors SIP-I support & interoperability in general. Devil is in the details. • Charging validation Belgacom ICS Confidential
  14. 14. Routing Options & Challenges Belgacom ICS Confidential
  15. 15. Traditional SS7 Interworking SS7 SS7 STP routing STP Control plane STP Control plane MNO A MNO B User plane User plane MG W MSS MSS MG W Voice Switch SMS Hub Roaming Hub TDM TDM• Interconnection still based on SS7 for user and control plane• Release 4 architecture not relevant for IP interconnection• Relying on HLR Interrogation & MSISDN Routing Tables Interconnections usually performed via Carriers Belgacom ICS Confidential
  16. 16. Packet Voice Interworking SIP-I TCP/UDP/SCTP IP L2,L1 IPX Control plane Control plane MNO A MNO B User plane User planeMSS MG W PVI Provider MG W MSS Codec RTP UDP OP L2,L1 Problem of SIP-I interworking if no MNP solution is available Belgacom ICS Confidential
  17. 17. MNP Impact • Wrong route selection • Operator might not be able to send traffic • Hub could terminate traffic to wrong destination • Risk of undelivered traffic if no solution available on terminating party • Could lead to asymmetrical routing • Troubleshooting complexity • Increase loop risk • Billing issues between hubs & MNOs09-Feb-24 Belgacom ICS Confidential
  18. 18. SIP-I Interworking with MNP Option a: MNO2 forwards call to MNO3 BG BG MNO1 IPX1 IPX2 MNO2 user plane BGMobile customer +32474xx SS7 control planecalls +393930xxx TDM MNP DB Option b: IPX2MNO1 routes the call towards the terminates call to MNO3“number owning network” MNO2 MNO3 Ported-in MNO C subscriber +397870xxx Direct MNP access, Call Forwarding & HLR Lookup as only options Belgacom ICS Confidential
  19. 19. Routing with ENUM Belgacom ICS Confidential
  20. 20. Interworking with ENUM BG MNO1 IPX1 IPX2 MNO2 user plane control plane BGMobile customer +32474xx MNPcalls +393930xxx SIP Redirect or DNS queryMNO1 routes the call towards the“number owning network” MNO2 MNP DB MNO3 ENUM Tier 0 MNP DB Option a: Redirection to country Option b: MNP level ENUM DB Operators providing DB ENUM Tier 1 Ported Numbers Ported-in MNO C subscriber +397870xxx Routing performed after ENUM lookup Traffic terminated directly by IPX to correct destination network Belgacom ICS Confidential
  21. 21. ENUM Benefits • Standardized solution for MNP • Direct routing • Transparency • Facilitate symmetrical routing • Security thanks to policy-based ENUM access • Accurate Billing & Reporting • Open to IPX, MNOs, FNOs and xSPs • Cost-efficient09-Feb-24 Belgacom ICS Confidential
  22. 22. What’s next ? Belgacom ICS Confidential
  23. 23. Going Forward • IPX is taking shape and should embrace any carrier services • MNP solution is required for any services • ENUM as ideal but solution also required for countries without centralized MNP DB • Assessment of all available options within relevant WG/bodies • Migration to ENUM under reasonable timeline • Solution required in hybrid environment • Consensus required to define architecture and business models in all scenarios • Connect to ALL MNP DBs Belgacom ICS Confidential
  24. 24. Thank you! www.belgacom‐ Belgacom ICS Confidential
  25. 25. Back‐upwww.belgacom‐ Belgacom ICS Confidential
  26. 26. Belgacom ICS Confidential