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교환기 변천사

교환기 변천사. 목 차. 1. 교환기 개요 2. 기술적인 추세 3. 교환기 변천사 4. 시스템 기능 5. 기능 설명. 1. 교환기 개요. 1.1. 개념. Building. 사설교환기. C.O. PSTN. Concentration. - Network Side : 효율적인 Network 관리 - User Side : 경제적 (Installation, Operation) 다양한 서비스 유지보수의 용이.

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교환기 변천사

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  1. 교환기 변천사

  2. 목 차 1. 교환기 개요 2. 기술적인 추세 3. 교환기 변천사 4. 시스템 기능 5. 기능 설명

  3. 1. 교환기 개요 1.1. 개념 Building 사설교환기 C.O PSTN Concentration - Network Side : 효율적인 Network 관리 - User Side : 경제적 (Installation, Operation) 다양한 서비스 유지보수의 용이 ** PSTN : Public Service Telephone Network ** C.O : Central Office

  4. 1. 교환기 개요 1.2. 시스템 Block Diagram Trunk Line Interface Switch Subscriber Line Interface PSTN Control Part I/O Interface Signaling Part Administrator

  5. 2. 기술적인 추세 2.1. 서비스 추세 Visualized Voice Connection Integrated Personalized Intelligent

  6. 2. 기술적인 추세 2.2. 기능 추세 Switching MIP : Mobile IP Optic Switching Broadband Switching MIP Telephony Internet Service IP Telephony CTI Service Narrow band Switching Solution/ Internet CT-2 DECT CDMA 2G/3G 교환기 WLAN 현 상황 Wireless ** CTI : Computer Telephony Integration ** CT-2 : Cordless Telephony generation 2 ** DECT : Digital European Cordless Telecomm. ** CDMA : Code Division Multiple Access

  7. 2. 기술적인 추세 2.3. 시스템 추세 WDM Exchange 용량 ATM Exchange Digital ISDN Exchange IP Exchange Digital Exchange Voice Data Integrated Optic Electronic Exchange Automatic Exchange Analog Manual Exchange 1950 1960 1970 1980 1990 2000 연도 ** ISDN : Integrated Service Digital Network ** ATM : Asynchronous Transfer Mode ** WDM : Wavelength Division Multiplex

  8. 교환기 일반전화기 프린터 시스템 운영자 3. 교환기 변천사 3.1. 기본 구성 C.O PSTN 전용선 타 PABX

  9. 교환기 일반전화기 Printer Administrator 3. 교환기 변천사 3.2. 기능추가 - Digital 기기 Digital 폰 2B+D Digital Trunk (T1,E1) PSTN C.O 전용선 Other PABX

  10. 교환기 일반전화기 Printer Administrator 3. 교환기 변천사 3.3. 기능추가 - ISDN ISDN PC ISDN Phone ISDN Trunk (PRI,BRI) 2B+D Digital Phone 2B+D Digital Trunk (T1,E1) PSTN C.O 전용선 Other PABX

  11. 교환기 Printer Administrator 3. 교환기 변천사 3.4. 기능추가 - CTI ISDN PC ISDN Phone ISDN Trunk (PRI,BRI) 2B+D Digital Phone 2B+D Digital Trunk (T1,E1) PSTN C.O 일반전화기 전용선 CTI Server PBX Driver Other PABX LAN DB Manager Agents / Tele-marketer

  12. 교환기 Printer Administrator 3. 교환기 변천사 3.5. 기능추가 - Wireless ISDN PC ISDN Phone ISDN Trunk (PRI,BRI) 2B+D Digital Phone 2B+D Digital Trunk (T1,E1) PSTN C.O 일반전화기 전용선 Base Station CTI Server PBX Driver Other PABX Hand Held Phone LAN DB Manager Agents / Tele-marketer

  13. 교환기 Printer 3. 교환기 변천사 3.6. 기능추가 - Internet ISDN PC ISDN Phone ISDN Trunk (PRI,BRI) 2B+D Digital Phone PSTN 2B+D Digital Trunk (T1,E1) C.O 일반전화기 VOIP 전용선 Base Station Call Manager Other PABX IP 전화기 CTI Server Cordless Phone Internet DB Manager LAN Switch Agents / Tele-marketer Administrator Multimedia PC ** VOIP : Voice Over Internet Protocol

  14. Printer 3. 교환기 변천사 3.7. 기능추가 - ATM Backbone ISDN PC 교환기 ISDN Trunk (PRI,BRI) ISDN Phone PSTN 2B+D Digital Trunk (T1,E1) Digital Phone C.O / Leased Line 2B+D 일반전화기 STM1 (155M) Cell Switch ATM network VOIP Base Station Call Manager IP 전화기 CTI Server Cordless Phone Internet DB Manager LAN Switch Agents / Tele-marketer Administrator Multimedia PC ** STM1 : Synchronous Transfer Mode type 1

  15. 4. System 기능 4.1. 시스템 기능 • On-line Diagnostics (Fault Detect / Recovery) • 과금 / 통계 • 원격 유지보수 (Remote Polling/ Remote Alarm) 4.2. Networking 기능 • Analog / Digital / ISDN / SS7 / Wireless / Internet 4.3. 부가기능 • Voice Mail System • Computer and Telephony Integration • Internet Telephony Gateway (VoIP) • Wireless CDMA ** SS7 : Signaling System No.7

  16. 5. 기능 설명 5.1. ISDN (Integrated Service Digital Network) 5.2. Wireless CDMA 5.3. Internet Telephony 5.4. CTI (Computer Telephony Integration)

  17. 5.1. ISDN ISDN Phone PSTN / ISDN 교환기 BRI 2B+D PRI 30B+D ISDN PC NT1 BRI 2B+D ISDN G4 Fax BRI 2B+D ISDN Phone ** PRI : Primary Rate Interface (30B+D) ** BRI : Basic Rate Interface (2B+D) ** B : Bearer channel (64Kbps) ** D : Data channel (64 or 16Kbps) ** NT1 : Network Termination Type 1 ISDN Picture Phone

  18. 5.2. Wireless CDMA BTS PLMN HLR/VLR Public Zone IS-634 BSC MSC Hand Off Office Zone PSTN/ISDN InfoMobile BTS InfoMobile : 삼성 Inforex Mobile 시스템 PLMN : Public Location Mobile Network HLR/VLR : Home/Visitor Location Registeration MSC : Mobile Subscriber Controller BSC : Base Station Controller BTS : Base Station Transceiver System

  19. 5.3. Internet Telephony Gatekeeper Internet Phone Web Video Phone IP Network (Internet) Multimedia PC 교환기 교환기 VOIP VOIP Telephone Telephone PSTN Telephone Telephone

  20. 5.4. Computer and Telephony Integration Internet PSTN Gateway Server WEB Server 교환기 L A N DB Manager ARS ACD PBX Driver CTI Server VMS FMS Clients type A Clients type B ** ACD : Automatic Call Distribution ** VMS : Voice Mail System ** ARS : Automatic Response System ** FMS : Fax Mail System

  21. 감사합니다

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