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Voice over IP Networks

Voice over IP Networks. Content. Market drivers Overview VoIP VOIP network solutions and products IN and SMC for VoIP network solutions Conclusion. Voice over IP Networks Market Drivers. VoIP market drivers Corporate network evolution: VoIP.

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Voice over IP Networks

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  1. Voice over IP Networks

  2. Content • Market drivers • Overview VoIP • VOIP network solutions and products • IN and SMC for VoIP network solutions • Conclusion

  3. Voice over IP Networks Market Drivers

  4. VoIP market driversCorporate network evolution: VoIP • Replacement long-distance TDM by cheaper IP connectivity: • possibility to outsource (VPN) --> cost savings • use private or public (VPN mode) Voice Gateways • simple Gatekeepers: addressing • Usage of PCs as telephones: the “integrated workstation” • Private Gatekeeper should contain PABX call functions • New integrated voice-data services: • integrated mail, conferencing, etc. --> added value • implemented by voice-data (IP) application servers • Integrate with world-wide VoIP --> cost savings and possible added value

  5. VoIP market driversCorporate network evolution: VPN • Possible impacts of VPN: • outsource remote access services: wide access • outsource open Internet access: wide access, performance • outsource Intranet services: security • Extranet services: authentication, security • use IP for other services: • voice, other data (tunneled) • differentiated QOS, security

  6. Public VoIP '99-'10 Corporate VoIP '98-'05 Current niche VoIP (Call Compl, Toll) '98-'00 Data -> IP Data in IP '97-'02 IP VPN '99-'05 VoIP and VPN impacts & timeframes IP conquering the business telecom world Operator Corporate PSTN Private TDM Private IP (routers) Public IP “Internet” Private data (X.25, FR) Timeframe: start commercial implementation - major deployment done

  7. Evolution telecom needs of an enterprisein volume (% versus situation in ‘98) • Voice:- each year 50% to VoIP- VoIP: compression 32 kbps in ‘99, 5,3 kbps in ‘02 • Data volume: x2 every year • Not included: web hosting (software like Microsoft, Netscape, e-commerce like Dell, Cisco, etc.): can add today orders of magnitude of IP

  8. Voice over IP networksShort term opportunities for Public VoIP • Packet-based long distance & network interconnect: “toll bypass” • PC voice client application support (residential & business) • PC to phone interoperability • “Call Completion” for web surfers • PBX trunk replacement for corporate networks • Point to point • Private routed network • Public routed network (VPN)

  9. Voice over IP Network Solutions An Overview

  10. VoIP OverviewTelephony access • Voice Gateway: analogue - IP conversion • Gatekeeper: address resolution - services SMC Gatekeeper S12/E10 USER Telephone user IP VoiceGway PC user RAN

  11. VoIP Component Overview • MultiVoice Gateway (Ascend) • Terminates the native PSTN network interfaces (PRI, BRI) • Supports various voice compression codecs • Support ITU-H.323 protocol for Phone-to-Phone and Phone-to-PC communications over the IP packet network • SMC Gatekeeper • Manages the H.323 zone(s) for a set of gateways and PC endpoints • Provides address translation: E.164 (telephone) to IP address • Supports client registration • PC Endpoints • Any standard H.323-compliant PC software that supports voice calls (e.g. NetMeeting or CoolTalk)

  12. VoIP Overview“Fixed” access • Public or Private Voice Gateway • Gatekeeper: as for narrowband Unique id Tel. nb. Tel. nb. Tel. nb. ADSL ATM VCWLL idLAN MACIP addr. SMC Gatekeeper S12/E10 USER IP VoiceGway RAN Fixed Access ADSL, WLL, WAN, LAN, etc.

  13. IN and SMC for VoIP network solutions

  14. IN services for telephone users SMP Service deployment Service provision • Services: • freephone • premium • calling card • VPN • nb. portability • etc. Service Data & Service logic SCP Specialized Resources INAP S12/E10SSP IP (Intelligent Peripheral) INAPonSS7 USER ISUP Call Handling Service triggering The SSP function is either performed by a dedicated switch or is integrated in an existing exchange (local or transit)

  15. IN and SMC services for RAN and VoIPOverview IN servicesfor VoIP calls/ sessions SCP IN services for VoIP dial-up SCP Gatekeeper IP SMC S12/E10 USER SMP Web basedIN svc mgmt IP VoiceGway IN services for Internet dial-up RAN Fixed Access SMC

  16. Summary (1)

  17. Summary (2) • Focus of current products: • phone-to-phone dial-up (two step dial) • corporate environment • Alcatel directions: • solutions for the public environment: • carrier-class gateway • gradual introduction of “full” telephony functionality • ubiquitous access: dial-up, but also “fixed” networks such as ADSL

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