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Shift of the Korean Voice Market: Transition from Fixed to Mobile Services

The Korean voice market is undergoing a significant transformation, shifting from fixed line services to mobile subscriptions. As of recent data, mobile subscribers have surged to 30 million, while fixed line subscriptions have dropped to 20 million. This change reflects a broader trend seen in other countries like the USA and Japan, where internet and data services are becoming the primary revenue streams for fixed operators. The evolution of network technology, including the introduction of NGN, aims to enhance service capabilities and offer competitive VoIP services, indicating a shift toward more advanced and customer-centered offerings in the telecom market.

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Shift of the Korean Voice Market: Transition from Fixed to Mobile Services

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  1. Voice Market Changeover • Shift of Korean Voice Market From Fixed to Mobile (Unit : # of persons) 30,000,000 Mobile subs Fixed subs 20,000,000 18,000,000 16,000,000 14,000,000 12,000,000 10,000,000 8,000,000 6,000,000 4,000,000 2,000,000 0 02 01 00 91 92 93 94 95 96 97 98 99

  2. Data Overrides Circuit Voice • Exceeding Data Traffic Volume over Legacy Traffic in Korean Fixed Operators Korea USA (Internet Traffic) Japan (Revenue) Voice Traffic • Tbps ’96 ’00.7 ’ 02 Telephone • Internet/Data/Leased Service has become the Major Revenue Stream for Fixed Operators Internet/ Data/ Leased 0 2001 2002 1997 1998 1999 2000

  3. (1000subs) 12000 10000 8000 6000 4000 2000 0 1998 1999 2000 2001 2002 2003 2004 2005 Forthcoming Turning Point Expected Broadband Internent • Expecting Saturation of Broadband Internet Access Service indicates a New Break-through for Advanced Services • Advanced network or Technology for Dramatic Expansion of customer Service Opportunity are desired! • NGN has been regarded as for a Vehicle of Customer-based/ Packet-based Service Convergence; Is that on a right way?

  4. NGN Movement Worldwide • ETSI NGN-SG and NGN-IG • ETSI established NGN-starter group last year to investigate NGN feasibility • Final report of the work through 2001 identified six working issues in NGN • NGN-IG has been operated in 2002 • Most of Working Issues are based on ETSI TIPHON & MSF architecture • Still in a workshop space, actual standardization is not so much activated • ITU • SG13 created “NGN2004” project in Jan 2002 • Views NGN as a “realization of GII” • Still No reference archive in the home page • SG16 leads MEDIACOM2004 project • Views NGN as a “IP multimedia convergence” • No significant advance after the workshop in April 2001 • NA/ Others • NA: Work has been carried in private sector • CTIA’s Approach for WIN –based NGN convergence • No significant advance recently

  5. Hanaro-Saerom (Dialpad) Free PC-to-Phone Service Dacom, Onse, KT Charged Internet-phone service Truephone Free PC-to-Phone Service & UMS Nextel, etc.. Free PC-to-Phone Service Competition on VoIP Service in Korea • The first VoIP operator started the business in Korea, August last year • Carrier operator and Service operators are now in the field of VoIP service competition Wired Voice Market Internet/ Data Market

  6. SS7 Network 3rd party Call Feature Server Network Management Center DB OSS INAP RADIUS Server STP SS7AP UMS IVR Open API SS7AP SoftSwitch SoftSwitch SIP-T GateKeeper H323 IP MGCP/SIGTRAN/SIP ITSP/Enterprise PACKET based backbone Network Internet API EMS M.G Access Gateway POTS Trunking Gateway xDSL M.G PBX ISDN-BRA Access Network ISDN-PRA V5.2 기업망 MSC/BSC ISDN-BRA Exchange POTS Mobile Network PSTN/ISDN Korean operator’s Launch to NGN • Korean Fixed Operators are actually started the deployment of AGW and softswitch as NGN core within a stepwise migration plan • Pursuing substitution of timeworn local exchanges, unified management over packet based network functions , and enhancement of service capability Curtsy of KT

  7. VoIPng WG(42 人) NGN Architecture WG(48 人) Signaling SG(33 人) TTA NGN Task Force TTA 通信網技術委員會 TF 02.06NGN TF(31 人) NGN Service & vision Chair : JY AHN ViceChair : DY KIM ViceChair : SS OH Secretary : GT ROH SG02.02 TF 02.06.01 TF 02.06.02 Protocol AdHoc(18 人)

  8. GPRS-SM PPP-MIP Evolution of Mobile to “All IP”Network • Mobile operator’s vision “All service on IP” or “All system on IP” Service Network Parlay based OSA IP Based Multimedia Convergence All IP Call control: CSCF IP based CC => MM Session Control All IP convergence packet connectivity SMS Edge/BRAN 1xEVDO/DV & more.. Radio Access Network Cdma2000 WCDAM GSM/GPRS RAN IS-95 A/B Circuit Circuit+Packet Packet Enhanced/Beyond 3G 2G/2.5G 3G

  9. Internet 2.4GHz (BlueTooth) Home G/W Home Net PSTN WLAN Based FMC Competition Curtsy of Hanaro Access Core Public Step1 Application Service Device Low speed mobile IP switch Step 1 DHCP AAA Step 2 Step2 FA HA 2.4GHz (BlueTooth) ADSL/ HFC/ B-WLL Home G/W Broadband/ high speed mobile Home Net Home 서버 TEL-EX

  10. Categories of Legacy FMC Technology Commercial Level Convergence Integrate charging/ billing/ customer interface for Fixed and Mobile customers ex) Customer Service integration, Unified billing & charging Service Level Convergence Interworking Fixed and Mobile service enough to make customer not to feel where he is ex) one number, UMS, FMC VPN, MNP , FMC portal Network Level Convergence Support Fixed and mobile service by means of the same network infra ex) convergence network

  11. NGcN Evolution Conceptual View • A Conceptual Diagram of NGcN, based on the technical movement/ issue / major investment in Korea Interest on the activity of TTC-ARIB IP2 Adhoc (Mr. Yabusaki) Legacy FMC Backbone & FMC technology upgrade Fixed Circuit-packet TNM convergence Service enhancement Open architecture interworking NGN Ubiquitous Multimedia Infrastructure Optical Internet Everything on IP Diffserv/QoS NGcN NGI Internet IPv6 interworking All IP High speed Mobile Mobile Internet Service Mobile multimedia access & platform Mobile current Step 2 Step 1 Step 3

  12. Marketing Committee Service vision & Market strategy NGcN Forum in Korea General Assembly Steering Committee NGcN Strategy TF Jae-young Ahn(ETRI) Hee-chang Jung (NCA) NGcN Service TC Broadband wireless Convergence TC FMC access TC FMC corenet TC N.A. UB Kim (ETRI) R Won (ETRI) BK LIM (LGE) NGN Service platform WG

  13. Further study on Global NGN • Considering New factors in NGN Backbone for the multi-carrier/ wide land environment • Global roaming of IP based multimedia terminal • Keeping consistent evolution and global standard trend • Language and security

  14. For Further Information Jae-young Ahn (安 在泳) • ETRI Mobile Communication Lab. • TTA NGN Task Force Chair • NGCN Forum Preparation Committee Chair • (e-mail) ahnjy@etri.re.kr • +82-42-860-3817 ☎ • +82-42-860-6789 (FAX) • +82-11-403-3817 (Cell) NGCN Press Release: (Korean) http://www.etimesi.com/news/detail.html?id=200205130247 (English) http://www.etienglish.com/news/detail_top.html?id=200205140013&art_grad=9

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