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From AIN to CTI to VoIP to IPTEL yet another Internet service

From AIN to CTI to VoIP to IPTEL yet another Internet service. henry.sinnreich@mci.com. For the associated text, please print out as notes pages with pure black and white with frames. Rise of the Dumb Netwok. IP services DNS ftp Mail - w. a/v integration Web IP telephony *

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From AIN to CTI to VoIP to IPTEL yet another Internet service

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  1. From AIN to CTI to VoIP to IPTELyet another Internet service henry.sinnreich@mci.com For the associated text, please print out as notes pages with pure black and white with frames

  2. Rise of the Dumb Netwok • IP services • DNS • ftp • Mail - w. a/v integration • Web • IP telephony * • A/V on demand • A/V/data conferencing • VPN - extranets • Resource location • many other not yet invented… • * so what’s the big deal ? • Key network protocols • DIAMETER AAA & ROAMOPS • SIP call setup & security • RTP/RTCP media transport • RTSP media server control • RSVP + backbone QoS/DS • RTF/MC PPP for slow links • L3 IPSEC security • L2TP tunneling, MPLS VC’s • SNMP • IP multicast • ... Buying decisions are data/IP driven Henry Sinnreich, MCI

  3. WWW IPTEL: Internet Protocols Open WWW Today: VoIP $600B+ combined market Call Centers H.323: ISDN on IP/LAN + RTP MS TAPI Telecom CTI: TDM+LAN some IP many API’s AIN: computers in center SCE 1990 2000 From AIN to IPTEL to Web-Media Value=Features/Cost (complexity) • Evolution of • network • protocols • applications Time Henry Sinnreich, MCI

  4. URL addressing any network any device HTTP syntax Security Session Description One message Complete data for network for people Address in header = URL sip:766-1223 (phone) sip:766-1449 (fax) sip:cnn.news.com http://operator@mci.com Encryption: PGP, v.2.6.2 Description in body = SDP service=ISDN mobility=fixed language=en m=audio 12345 RTP/AVP 0 …... Use the Web & Simplicity: SIP and SDP sip:1-972-498-1223@mycarrier.com Henry Sinnreich, MCI

  5. User Location SIP Server Service Location Caller Agent Called Agent Caller Client Called Client SIP Call Model w. Redirect & Mobility Basic SIP call setup is 1.5 RTT INVITE jeff@isp.net 2 1 302 Temporarily Moved Location: sip: visitor@marketing.isp.net 3INVITE visitor@marketing.isp.com visitor 4200 OK Jeff Henry Sinnreich, MCI

  6. PINT CLIENT SERVER SCP/IN PSTN or PBX WWW/IP NETWORK PSTN-Internet (PINT) • C->S: INVITE marketing@pint.mailorder.com SIP/2.0 • Via: SIP/2.0/UDP 169.130.12.5 • From: anon-1827631872@chinet.com • To: 1-800-IRON-YES • Call-ID: 19971205T235405.56.78@chinet.com • Subject: Sale of Ironing Boards • Content-type: application/sdp • Content-length: … • v=0 • o=- 53655765 2353687637 IN IP4 128.3.4.5 • I=Ironing Board Promotion • c= TN RFCxxxx +1-201-406-4090 • m=audio 0 voice Request to Call Request to Fax Request to Hear Content Henry Sinnreich, MCI

  7. SS7 for IPTel Add addresses for IPTel routing ngIN PC call/conference to PSTN/CCS#7 end point • DB interface • Translate into SIP • IP interface DB GWY SS#7 SS#7 • IP network • Internet • MCI private Overseas switch net US switch net GWY GWY • Destination E.164 • Origination E.164, CLI • Time stamps • Call ID • Call treatment • Other... Inbound Outbound PC call Henry Sinnreich, MCI

  8. AIN/IN NCP SS7 TCAP SS7 ISUP ? SIGNALING GATEWAY ? inter GWY ? PSTN GATEWAY CONTROL ? INTERNET RTP IMT MEDIA GATEWAY Interoperable IP Telephony Gateways GWY Protocols ? • ISO/IEC DSM-CC User-Network Protocol • NOTASIP Nothing Other Than A Simple Internet Phone • SGCP Simple Gateway Control Protocol • RSGP Reliable Signaling Gateway Ctrl. Prot. • DIAMETER series Twice RADIUS • IPDC series Six IP Device Control Protocols • Etheric • DTR/TIPHON 020004 • SIP with PIP extensions VOICE, FAX, DATA Henry Sinnreich, MCI

  9. CENTRAL OFFICE SIP Interaction with SS7 - ISUP IP telephony gateway INVITE IAM SIP ISUP ACM 100 ANM 200 ACK connect ack conversation REL BYE RLC 200 Henry Sinnreich, MCI

  10. Audio/Video mail integration with RTSP and SIPand e-mail for call centers Send personal information to customers 1. INVITE SIP SERVER MAIL CLIENT 5. e-mail URL A/V CLIENT 2. LOCATION 3. Setup RECORD & PLAY RTSP 4. VOICE MENU and RECORD a/v MSG Interactive voice response (IVR) 6. A/V MSG STREAM MEDIA SERVER MEDIA PLAYER RTSP Henry Sinnreich, MCI

  11. IP Based Web Call Center • Don’t buy boxes for their software • “Software virtual” : • Switch • ACD • IVR Data Operator 3 2 1 MCI Web Server Customer no CTI Same IP transport for voice and data Present: Boxes from ~15 vendors and counting Replace with one software package ? Henry Sinnreich, MCI

  12. SIP/IP Call Center Components SIP/IP Call Center Components Data Operators Operator groups Operator Client Operator Agent Sound Graphics Video ACDFunction Parking Voice Understanding Multimedia “IVR” Web content MCI Web Server Customer MCI service Henry Sinnreich, MCI Generic Software

  13. Intranet Intranet PSTN ngIN Virtual Private Network - Extranet • Authentication • Routing • QoS • Transactions Credit verification & payments • DIAMETER AAA: • Authentication • Authorization • Accounting • Roaming Operations Iptel Gwy Internet encrypted tunnels Security Gwy Security Gwy • Tunneling protocols: • IPSEC • L2TP, MPLS Henry Sinnreich, MCI

  14. Conclusion: Why keep telephony separate on the Internet? Make ISP=ITSP • (Technology & future cannot be predicted) • Will telephony be absorbed as • yet another Internet service ? In what time ? • Smoothest introduction in IP networks • Extra revenue possible from: • gateway services to PSTN • QoS • portfolio of convenient & rich IP services • Please see references Henry Sinnreich, MCI

  15. References - 1 Very large conferences on the Internet: The Internet Multimedia Conferencing Architecture” by M. Handley,,J. Crowcroft, C. Bormann, J. Ott http://north.east.isi.edu/~mjh/papers.html The home page of the IPTEL IETF Working Group: http://www.bell-labs.com/mailing-lists/iptel/ Integrated Services in the Internet Architecture: an Overview by Braden, Clark, and Shenker, RFC-1633, June 1994. ftp://ftp.isi.edu/in-notes/rfc1633.txt “Security Architecture for the Internet Protocol” by Stephen Kent and Randall Atkinson, IETF draft, March 1998, ftp://ftp.ietf.org/internet-drafts/draft-ietf-ipsec-arch-sec-04.txt Information page for the The Session Initiation Protocol (SIP): http://www.cs.columbia.edu/~hgs/sip/ The Real Time Streaming Protocol (RTSP), Proposed RFC 2326, ftp://ftp.isi.edu/in-notes/rfc2326.txt Papers on the Real Time Protocol (RTP): http://www.cs.columbia.edu/~hgs/rtp/papers.html INRIA - High Quality Audio Over The Internet, the Free Phone, http://www.inria.fr/rodeo/fphone/ Internet Telephony and Multimedia Services http://www.cs.columbia.edu/~hgs/research/imm/ Henry Sinnreich, MCI

  16. References - 2 IETF Session Initiation Protocol by Henning Schulzrinne, presentation at the VON Spring ’98 Conference, http://www.pulver.com The PINT Profile of SIP and SDP by S. Petrack ans Lawrence Conroy, IETF draft, August 1998,ftp://ietf.org/internet-drafts/draft-ietf-pint-sip-00.txt Call Processing LanguageRequirements by J. Lennox and H. Schulzrinne, IETF Draft, August 1998, http://ietf.org/internet-drafts/draft-ietf-iptel-cpl-requirements-00.txt The home page of the PINT IETF Working Group: http://www.bell-labs.com/mailing-lists/pint/ MIT distribution page for PGPfone: http://web.mit.edu/network/pgpfone/ Providing integrated services over low-bitrate links by Carsten Borman, IETF draft, March 1998. ftp://ftp.ietf.org/internet-drafts/draft-ietf-issll-isslow-04.txt The Multi-Class Extension to Multi-Link PPP by Carsten Borman, IETF draft, March 1998. ftp://ftp.ietf.org/internet-drafts/draft-ietf-issll-isslow-mcml-04.txt Compressing IP/UDP/RTP Headers for Low-Speed Serial Links by S. Casner and V. Jacobson, IETF draft, July 1998,http://ietf.org/internet-drafts/draft-ietf-avt-crtp-05.txt URLs for Telephony by A. Vaha-Sipila, IETF draft, February 1998. http://www.ietf.org/internet-drafts/draft-antti-telephony-url-06.txt An RTP Payload Format for User Multiplexing by H. Schulzrinne and J. Rosenberg, IETF draft, May 6, 1998. ftp://ftp.ietf.org/internet-drafts/draft-ietf-avt-aggregation-00.txt Henry Sinnreich, MCI

  17. Relevant IETF WG’s and mailing lists MMUSIC: confctrl@ISI.EDU IPTEL: iptel@lists.research.bell-labs.com PINT: pint@lists.research.bell-labs.com SS7: ss7-internet@BayNetworks.COM to subscribe To: iptel-request@lists.research.bell-labs.com Message body: subscribe Henry Sinnreich, MCI

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