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Telecom Italia Lab 2nd May 2001 Next Generation Services & Next Generation Networks - Soft Switching & Gateways Enzo Garetti Maurizio Siviero Paolo Senesi.

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Presentation on theme: "Telecom Italia Lab 2nd May 2001 Next Generation Services & Next Generation Networks - Soft Switching & Gateways Enzo Garetti Maurizio Siviero Paolo Senesi."— Presentation transcript:

1 Telecom Italia Lab 2nd May 2001 Next Generation Services & Next Generation Networks - Soft Switching & Gateways Enzo Garetti Maurizio Siviero Paolo Senesi Corrado Moiso

2 2 NGN – Soft Switching & Gateways 2 Content 1 Presentation Market Evolution Next Generation Services Soft Switching & Gateways Next Generation Networks 2 Annex Market Evolution - Details Next Generation Services - Details Soft Switching & Gateways - Further details Next Generation Networks – Details & Applications

3 3 NGN – Soft Switching & Gateways 3 Market Evolution Telecommunication Services Voice & Data Services Fixed & Mobile Services Europe (history): Saturation of PSTN lines Growth of mobile subscribers Growth of data traffic ISDN, PCs, Internet accesses Europe (history): Growth of the service market Steady equipment market 85% services, 15% equipment Networks & Equipment Fixed & Mobile Switched Networks for Voice & Data Switching & Networking Equipment Datamonitor forecasts: Growth of data traffic Pessimistic, optimistic, probable Value of traffic Voice very expensive, Data very cheap Traffic revenues Steady voice revenues, growth of Data revenues Nokia forecasts - Growth of: the global market cellular subscribers PCs connected to Internet mobile accesses to Internet Mobile Internet/Intranet services Dittberner (structural trends): Partnerships, Acquisitions, Rationalisation New Telecom Service Providers, Carriers Carriers, Consolidation New Architectures, Optical Solutions, Multi-Service Systems OVUM forecasts: Growth of NGN access lines Steady fixed telephone lines

4 4 NGN – Soft Switching & Gateways 4 Next Generation Services Evolution of Service Control: –Telephone Exchange –IN, AIN, Service Nodes –SS7 Signalling Network Converged Services: –Telecommunications & Internet –Voice & Data, Fixed & Mobile New Services & Applications IP – based packet networks Diversification of the roles in the value chain: –Content –Application –Service –Caching –Intermediation –Network Paradigm Shift: –Telephone approach – long term planning –Internet approach – try and error Evolution towards the Information Society: –Exchange of messages (Anyhow, Anytime, Anywhere) –Exploiting any interaction mean (Sound, words, text, images) –Decoupling the user from the terminal and the connection used Next Generation Services: voice, data and multimedia traffic –Advanced management –High level of personalisation Progressive integration of Telecommunication & IP functions Integrated IP/Telecom Services Networking of Servers

5 5 NGN – Soft Switching & Gateways 5 Soft Switching & Gateways Gatekeeper functions: –Address translation –Telephone numbers – IP addresses –Admission control –Other gatekeeper functions –Call control signalling –Call authorisation –Call management Servers: –Directory services –Registration –Authorisation –Policy services Feature Server: –Database look-up –SCP SS7 and IP : –H.323, H.225, H.245 standards –Signalling translation within Gateway + Gatekeeper –SCP/SSP functions & Service Nodes –TCAP over IP Servers for IP Telephony: –H.323 standards –Gateways –Interworking with PSTN –Interworking with IP nodes & terminals –Gatekeeper (Softswitch) –Processing of call set-up information –Instructions for IP packet routing –RAS (Registration, Admission and Status) protocol (H.225)

6 6 NGN – Soft Switching & Gateways 6 Next Generation Networks Line Gateway Trunking Gateway Edge Router Enabling Network Elements Residential / SOHO High Residential / SME Users of the final service Corporate Clients Users of the platform Start-up / Incubator Content Provider Transport Network (TN) Control Functionalities Signalling Agent Call/Session Control Policy Decision Point Device Server Application Servers Directory AAA User/Service Agent Policy Repository Billing / E-Commerce Unified-messaging Legacy networks Intelligent Network Mobile Network Big Internet ATM Network Metropolitan Networks Integrated Networks Signalling Network PSTN ASP

7 7 NGN – Soft Switching & Gateways 7 Conclusion Soft Switching & Gateways: – Servers for IP Telephony: H.323 standards Gateways Gatekeeper (Softswitch) –SS7 and IP Next Generation Networks: –Application Servers –Control Functionalities –Enabling Network Elements –Transport Network –Gateways to Legacy Networks Market Evolution: –Saturation of fixed lines –Data overcoming voice –Mobile overcoming fixed Next Generation Services: –Evolution of Service Control –Converged Services, NGS –Integration of Telecommunication & IP functions & Services –Networking of Servers –Diversification of the roles –Paradigm Shift

8 8 NGN – Soft Switching & Gateways 8 Annex 1 Presentation Market Evolution Next Generation Services Soft Switching & Gateways Next Generation Networks 2 Annex Market Evolution - Details Next Generation Services - Details Soft Switching & Gateways – Further details Next Generation Networks - Details

9 9 NGN – Soft Switching & Gateways 9 Market Evolution Telecommunication Services Voice & Data Services Fixed & Mobile Services Europe (history): Saturation of PSTN lines Growth of mobile subscribers Growth of data traffic ISDN, PCs, Internet accesses

10 10 NGN – Soft Switching & Gateways 10 Market Evolution Europe (history): Growth of the service market Steady equipment market 85% services, 15% equipment Networks & Equipment Fixed & Mobile Switched Networks for Voice & Data Switching & Networking Equipment OVUM forecasts: Growth of NGN access lines Steady fixed telephone lines Source: Ovum 1999

11 11 NGN – Soft Switching & Gateways 11 Market Evolution 250 200 150 100 50 19971998199920002001 Traffic Projections for Voice & Data Rel. Bit Volume Voice Data (IP) Source: Multiple IXC Projections

12 12 NGN – Soft Switching & Gateways 12 Market Evolution

13 13 NGN – Soft Switching & Gateways 13 Market Evolution Datamonitor forecasts: Growth of data traffic Pessimistic Optimistic Probable Value of traffic Voice very expensive Data very cheap Traffic revenues Steady voice revenues Growth of Data revenues Source: Datamonitor 2000

14 14 NGN – Soft Switching & Gateways 14 Market Evolution Nokia forecasts - Growth of: the global market cellular subscribers PCs connected to Internet mobile accesses to Internet Mobile Internet/Intranet services Source: Nokia 2000

15 15 NGN – Soft Switching & Gateways 15 Market Evolution – Structural Trends More Strategic Partnership: –Suppliers & Service Providers; Beta trials. Less Reliance on Supplier Internal Resources for Development: –Acquisitions of start-up high technology firms Move of Significant Vendors of PSTN Switching Equipment to Provide Packet Exchanges New Telecom Service Providers: –Next Generation Systems for new entrants; gradual approach for incumbents Telecom Operators Undergoing Supplier Rationalisation: –Reduce the number of suppliers; economies in Maintenance & Operation –New Major Operators are Introducing New Network Architectures –TDM, IP, ATM, DWDM; dedicated wavelength (or fibre) for different traffic –Optical Switching May Reduce Packet Switching Traffic Handling –Optical cross-connects –Carriers Carriers are Becoming a Significant Factor in Industry Structure –Bulk transmission; reducing costs –Consolidation of Major Service Providers –Bell Atlantic + Nynex + GTE, Vodaphone + Air Touch + Mannesmann Source: Dittberner Associates, Inc 2000

16 16 NGN – Soft Switching & Gateways 16 Next Generation Services Evolution of Service Control: –Telephone Exchange –Number translation –Switching & Routing –IN, AIN, Service Nodes –Database look-up –SSP & SCP –SS7 Signalling Network Converged Services: –Telecommunications & Internet –Voice & Data –Fixed & Mobile New Services & Applications IP – based packet networks Control issues

17 17 NGN – Soft Switching & Gateways 17 Next Generation Services Evolution towards the Information Society: –Exchange of messages –Anyhow Anytime, Anywhere –Exploiting any interaction mean –Sound, words, text, images –Decoupling the user from the terminal and the connection used Next Generation Services: –Combining voice, data and multimedia traffic –Advanced management –High level of personalisation Integrated IP/Telecom Services Existing (Internet Call Waiting, Click- to-dial, Web-based Customer Provision & Billing, Unified Messaging) Advanced (Virtual Environment, Virtual Presence, Enhanced VPN) IP Telephony ( Existing offer, cost reduction claim, management & QoS issues Progressive integration: –Functions traditionally offered by the telephone network –Functions provided by IP networks Networking of Servers Convergence of IP & AIN capabilities NGS business opportunities: –Rich, diversified and personalised service portfolio –New functions provided by NGN –Integration of IN & IP functions

18 18 NGN – Soft Switching & Gateways 18 Next Generation Services Final Client Final Client Content Provider Content Provider Application Provider Application Provider... Network/ Intermediation Service Provider Diversification of the roles in the value chain: –Application Service Provider –Content Provider –Caching Provider Possibilities of intermediation among the upstream actors in the value chain and Service Provider/final client: –communication portal –new business opportunities with benefits for the final client: towards the free access to a bundle of services, with usage- based revenues (e-commerce, one-stop shopping, …)

19 19 NGN – Soft Switching & Gateways 19 Next Generation Services Classical telephonic approach: long-term planning Internet approach: trial and error Ideation Design Definition of requirements Trial Network Deployment 18 months Focus on single services not as eventual killer applications, but as a driver (requirements, functionalities) for an infrastructure devoted to improve the modalities of provision of the various services. A set of services is launched... …some will succeed! New approach for the launch of services

20 20 NGN – Soft Switching & Gateways 20 Soft Switching & Gateways Servers for IP Telephony: –H.323 standards –Gateways –Interworking with PSTN –Interworking with IP nodes & terminals –Gatekeeper (Softswitch) –Processing of call set-up information –Instructions for IP packet routing –RAS (Registration, Admission and Status) protocol (H.225) Gatekeeper functions: –Address translation –Telephone numbers – IP addresses –Admission control –Gatekeeper discovery –Endpoint registration –Endpoint location –Other gatekeeper functions –Call control signalling –Call authorisation –Call management Source: Dittberner Associates, Inc 2000

21 21 NGN – Soft Switching & Gateways 21 Soft Switching & Gateways Source: Dittberner Associates, Inc 2000 Servers: –Directory database server –Registration database server –Authorisation database server –H.225 RAS server –Policy server Gatekeeper components: –Gatekeeper Manager –H.225.0 RAS –H.225.0 Call Signalling –H.225.0 Control Signalling –Billing Services –Directory Services –Security Services –Policy/Call Management –Transport Protocols & Network Interface SS7 and IP : –H.323, H.225, H.245 standards –Signalling translation within Gateway + Gatekeeper –SCP/SSP functions & Service Nodes –TCAP over IP Feature Server: –Database look-up –SCP

22 22 NGN – Soft Switching & Gateways 22 Next Generation Networks Concept of Carrier-Class and SLA Management : –evolution of the Carrier-Class concept; –mechanisms to support SLA differentiation/control/management. Policy-based Networks to support network-based services : –QoS control within the network; –provisioning/customer service management. Control Aspects : –Modalities for call/session acceptance & control within multi-service networks; –Evolution of the SoftSwitch to support innovative/integrated services New terminals/CPE/CLE : –Control modalities; –manageability, remote maintainability; –new characterisation modalities

23 23 NGN – Soft Switching & Gateways 23 NGN - High Performance Data Networks Enterprises Consumers ACCESS CORE ROUTING & SWITCHING EDGE ROUTING Server Performance Capacity Scalability Dependability Congestion control Packet classification Access control Resource management Security/filtering Traffic data collection Profiles/service policy Very high performance Simplified functionalities Fault tolerance Rich, flexible and evolvable functionalities Support to the service policies of the operator Management support Data Network Architecture

24 24 NGN – Soft Switching & Gateways 24 NGN - New Telephony Voice as a component of a more articulated service Network-based services Infrastructural innovations for a simplicity & flexibility in the service provision time-to-market reduction, opening towards third parties,... Results towards different clients ILEC, Vendors, Corporate, ISP, CLEC,... coherence with the new business models brokering/retailing/reselling, services towards the other actors of the value chain interworking issues with the existing situation Solutions for New Telephony TECHNOLOGIES Architectures Control/management Interworking Terminals/CPE SERVICES voice-based enabling platform TEST BEDS focus on services

25 25 NGN – Soft Switching & Gateways 25 NGN - New Telephony PSTN R ! DSLAM R ! Access Network Broadband Voice Gateway Platform Control BackBone IP xDSL Network Architecture Interworking Systems for voice (Media Gateway) for the signalling (Signalling Gateway) Signalling protocols & systems Control Systems calls networks/services resources Management aspects Voice Quality Solutions for New Telephony

26 26 NGN – Soft Switching & Gateways 26 NGN - IP Networking Internet backbone Internet access Internet core Netw. policy Proxy Cache VAS Directory & Location User profile AAA Server Corporate & business Management Services Value Added Networking Services Network efficiency Good peering/transit policy Advanced networking services Number of users Click rate Economies of scale Low cost solutions Content delivery suites Application hosting VAS (e. g. fax server) Networking policies Performance monitoring SLA management Turn-key solutions Vertical integration CNM solutions Design consulting

27 27 NGN – Soft Switching & Gateways 27 NGN - Enterprise Internet Solutions Design & integration of complete solutions: n Data Intranet, IP VPN, Voice-data integrated solutions (VoATM, VoIP) n video communication solutions & multicast audio-video solutions over Intranet Support to operation: n re-dimensioning, management, monitoring INTERNET IP network services Headquarter SOHO Remote Site Mobile User PSTN/ISDN/PLMN ATM/FR network services New solutions for corporate networks


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