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“Voice Over IP” “The next telecoms revolution?” Steve Hinde HP Research Labs [email protected] Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab TWO WORLDS COLLIDE 1998 Circuit Switched World IP World Beyond 2000 Data is Overtaking Voice V V(&D) Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol V/D D(&V) HP Research Lab Voice and Data Growth V V(&D) V/D D(&V) Home Pots Telephone + Modem ISDN IP-dialtone Mobile GSM SMS GPRS/UMTS IP appliance Private Voice Data over Voice VPN/IP VoIP Telco (and ISP) Telco as ISP ISP as Telco Circuit (+data) Circuit/Packet Packet only Corporate net Telco Providers Backbone Circuit switched Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol Thursday, 25 May 2017 HP Research Lab Choose View, Header and Footer to enter text here 6 An experiment in multidiscipline research Economics Regulatory policy + Computer Science Research topics xDSL group Cost models for ISP and Intranets Metanet, Application testbed Yield management, Architectural Implications of Internet Pricing Models Activities Researchprogram Placements in MIT lab ITC members meetings Collaborative research Impressive research team Lee McKnight, Bill Lehr, David Clark John Wroclawski Russ Neuman et al. Intern et Community Consortium members Delta Three, Hewlett-Packard, Lucent, Media One Mediatrix, NMS, NetSpeak, Nokia, Nortel, Sprint Telecom Italia, Telenor, Telia, Vocaltec IETF Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol http://itel.mit.edu HP Research Lab Voice over IP: Why? Packet Switchs are more efficient than circuit switchs Data traffic dominates Voice traffic Business Opportunities Internet Toll bypass opportunity now Intranet Enterprise data growth makes separate voice network unneccasry “Public Networks” Level 3 , Qwest, ICG, ISPs, AT&T etc Standards H323 The result: 50% of Voice traffic will be over IP in 5-10 years Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Clarke’s model Toll by-pass PSTN GTW IP network GTW PSTN •FCC opportunity •Arbitrage •Saving costs Hybrid IP network GTW PSTN •VoIP client to Phone •Phone to VoIP IP network Next IP GTW PSTN GTW •IP everywhere •IP in the Local loop Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab IP Three peaks Hybrid Networks Voice-data convergence E-commerce IP communications IP appliances Amateurs Toll by-pass Today? T Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The consumer view Time “IP IP IP Appliance Appliance Everywhere Communications Companies Cross over Hybrid Telcos Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief I Communication > Information Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Beyond the Information Age Bandwidth Data Voice CSPs ISPs Store & Forward Real-time Usage Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief II All Networks will> converge on IP Communication Information PSTN ISDN Hybrid IN IP IP Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab IP: The Great Leveller Services $s IP $s Networks Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief III Service Intelligence will migrate from the core of the Network Services will be variously spread across the network from the core to the ISP/CSP to the enterprise to the client Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief IV Communications Systems will increasingly become Soft Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief V The Net will fundamentally change in purpose Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The Users’ View The Net as Transport The Net as a Magazine The Net as a Place 1993 1998 c.2002 “The Net as a Meeting Place” Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief VI Voice over IP (VoIP) is a true pointer towards Convergence Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief VII The Hybrid World is a Stepping Stone Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Three peaks Hybrid Networks Voice-data convergence E-commerce IP communications IP appliances Amateurs Toll by-pass Today? T Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Belief VIII The $1T Telecoms Market is vulnerable in this disruption •IP as the transport •Distributed intelligence •Increasing softness Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab WebIN Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab WebIN Background Intelligent control over public telephony is buried in the PSTN Telephone services (800 number, VPN, call distribution, personal number etc) are a significant source of revenue for Telcos Intelligence in the PSTN is being overshadowed by intelligence outside the PSTN - the Internet Intelligence in the network makes it easier to direct calls to people, not terminals ... Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The Intelligent Network Telephony Services (e.g. 800 number, single number, VPN) Services implemented Service Layer as point solutions... Switching Layer Many problems a result of centralisation Integration at the switching not the service level Standards develop at glacial speeds Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol Operator 1 Operator 2 Servic e Contro l Point Servic e Contro l Point Service Switchin g Point Service Switchin g Point HP Research Lab The WebIN Architecture A hybrid architecture Service logic & subscriber information are held on the Internet Interfaced to the service control point for bearer channel and resource control Web Server Internet Tel#->URL DNS Lookup Fundamental elements: IN services can access Internet resources via an Internet gateway (the WebSCP) Internet resources return service data (e.g. a destination telephone number) to the IN service There is a global Tel# -> URL translation service based on DNS to allow the correct Internet resource to be identified for each subscriber. Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol DN S HP Research Lab Gateway Servic e Contro l Point Service Switchin g Point Lets all meet on the Web! Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The WWW as a Medium The WWW isn’t a new kind of paper post (but quicker) or a new kind of telephone (with accompanying HTML). The WWW is a new communication medium (like radio, film, TV … but different) The WWW combines transaction, entertainment, messaging and real-time communications The WWW can support & integrate the entire marketing process In transition from hypermagazine ->client-server -> entertainment adjunct -> social spaces Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Technical Evolution PSTN Digital Voice VoIP 3D Audio & Graphics TCP/IP 2D Graphics Java WWW Cyberspace* 1998 Analogue Broadcast MPEG2 Digital MPEG4/7 Broadcast Digital Audio Digital Audio 2D Graphics 3D Graphics Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol Matrix* HP Research Lab Multiverse* *with thanks to William Gibson & Neal Stephenson Virtual Helsinki as a Digital Site in Cyberspace Intranet - and meeting point - for citizens of Helsinki Channel for cultural and business activities IP-based multimedia network (Nokia, Ipsilon technology) Keeping Finland at the forefront of early adoption of communication technologies Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Three peaks Hybrid Networks Voice-data convergence E-commerce IP communications IP appliances Amateurs Toll by-pass Today? T Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Gating factors for the third peak IP Pipe into the home Cheap Wide Area IP Networks IP Appliances that open IP Communications to mass consumer market New applications that couldn’t happen down 64k pipe! “Always on applications” e.g. home monitoring High bandwidth IP pipes to home - Multimedia comes of age. Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The Local Loop story... Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab The evolving Network Wireless Local Loop xDSL Local Loop Core Network Mobile Cable MSC Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab POTS Cable TV Copper Coax TV Radio Broadcast Past industry structure of residential access Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Ref. ITC D. Clark http://itel.mit.edu IAP POTS CLEC Copper Radio Internet ADSL HFC Coax TV VDSL Satellite Broadcast Emerging industry structure of residential access Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Ref. ITC D. Clark http://itel.mit.edu Phone Internet CLEC Copper Coax Satellite Wireless Alternatives for access to telephone system Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Ref. ITC D. Clark http://itel.mit.edu E-Mail IAP Radio TV Internet Phone POTS ADSL Copper Radio HFC Coax Wireless Satellite Potential industry structures surrounding the Internet Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab Ref. ITC D. Clark http://itel.mit.edu Summary Telecommunications is changing radically under the influence of the convergence of networks VoIP is an example of convergence Voice Over IP BCS Talk, Hewlett-Packard Laboratories, Bristol HP Research Lab