® Barry Castle 3Com Public Affairs Vice-Chairman ETSI TIPHON [email protected] 9th October 1998...

®

Barry Castle3Com Public AffairsVice-Chairman ETSI [email protected] October 1998

QoS in ETSI QoS in ETSI TIPHONTIPHON

and the Internetand the Internet

3Com Product Icon Library. 03/98Broadband Access Icons page 2

®Why IP Telephony, what’s the Why IP Telephony, what’s the Appeal?Appeal?

• Carriers Estimate that IP Telephony will enable them to Carriers Estimate that IP Telephony will enable them to deploy new services:deploy new services:

– In a third the timeIn a third the time– at a third the costat a third the cost

• IP telephony enables faster and cheaper service deliveryIP telephony enables faster and cheaper service delivery

– Matching today’s communication Matching today’s communication environmentenvironment

– Enabling market-driven competitive Enabling market-driven competitive advantageadvantage

• But there will be more players ...But there will be more players ...


®

But there will be more players ...But there will be more players ...


®

New billing modelsNew billing models

• With increasing competition to carry long With increasing competition to carry long distance trafficdistance traffic– Clearinghouse Companies: TransNexus, Ipass, Clearinghouse Companies: TransNexus, Ipass,

Gric, ITXC ...Gric, ITXC ...

• Billing for distance will no longer sustain Billing for distance will no longer sustain growthgrowth

• Carriers are seeking new revenue streamsCarriers are seeking new revenue streams– New applicationsNew applications– New MarketsNew Markets– Billing for QoSBilling for QoS


®

IP Telephony StandardisationIP Telephony Standardisation

• ITU SG16 - H.323ITU SG16 - H.323

• IMTC VoIP Forum - H.323IMTC VoIP Forum - H.323

• ETSI TIPHON - H.323ETSI TIPHON - H.323

• IETF - IP aspectsIETF - IP aspects– DiffservDiffserv– RSVPRSVP– RTPRTP

Copyright ETSI, David Gurle3Com Product Icon Library. 03/98Broadband Access Icons page 6

® Why Project TIPHON?Why Project TIPHON?

• Do we need another VoIP Standardisation Do we need another VoIP Standardisation

Project?Project?

– IETF working on IP ProtocolsIETF working on IP Protocols

– ITU working on SCN ProtocolsITU working on SCN Protocols» With the exception of ITU-T SG16, which defines With the exception of ITU-T SG16, which defines

H.323H.323

– ETSI TIPHON working on connecting IP and ETSI TIPHON working on connecting IP and

SCN networks, by providing Service Driven SCN networks, by providing Service Driven

SpecificationsSpecifications

– TIPHON Requirements are driven by TIPHON Requirements are driven by

Operators, in addition to Equipment VendorsOperators, in addition to Equipment Vendors


® Companies that support TIPHONCompanies that support TIPHON

•3COM3COM•AlcatelAlcatel•AT&TAT&T•AscendAscend•BellcoreBellcore•CiscoCisco•Deutsche TelekomDeutsche Telekom•DialogicDialogic•EricssonEricsson•HPHP•France TelecomFrance Telecom•KPNKPN

•Lucent Technologies Lucent Technologies •IntelIntel•MicrosoftMicrosoft•MotorolaMotorola•NokiaNokia•NMSNMS•Nortel/MICOMNortel/MICOM•Siemens AGSiemens AG•Post & Telekom AustriaPost & Telekom Austria•PhilipsPhilips•TeliaTelia•VocalTecVocalTec

ETSI is European, but TIPHON is International...


® Technical ObjectivesTechnical Objectives

• Define:Define:

Requirements for Service InteroperabilityRequirements for Service Interoperability

Global Architecture: interfaces and Global Architecture: interfaces and

functionsfunctions

Call control procedures, information flows Call control procedures, information flows

and protocolsand protocols

End-to-End Quality of Service parametersEnd-to-End Quality of Service parameters

Address translation between E.164 and IPAddress translation between E.164 and IP

Technical Aspects of Billing, Accounting, Technical Aspects of Billing, Accounting,

and Reconciliationand Reconciliation

Security Profiles and ProceduresSecurity Profiles and Procedures


® Project OrganisationProject Organisation

Project Steering Committee:Siemens, Ericsson, Alcatel, VocalTec, Lucent, 3Com,

PTA

WG1: RequirementsEricsson

WG2: ArchitectureAlcatel

WG3: ProtocolsVocalTec

WG4: Addressing andNaming

Lucent

WG5: QoS3Com

WG6: Verification &Demonstration

Austria PTA

STF 114

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Broadband Access Icons page 10

® TIPHON GoalsTIPHON Goals

• Charter:Charter:

• Combine the best telecommunications and Internet technologies to enable Combine the best telecommunications and Internet technologies to enable

Voice over IP networks to Voice over IP networks to interworkinterwork with Switched Circuit Networks (SCN) with Switched Circuit Networks (SCN)

• Goals:Goals:• Fast: Meetings every 6-7 Weeks and email listsFast: Meetings every 6-7 Weeks and email lists

• Focus on Services and SpecificationsFocus on Services and Specifications

• Provide for global, world-wide acceptanceProvide for global, world-wide acceptance

• Service Oriented Solutions that can be provided by many types of network Service Oriented Solutions that can be provided by many types of network operatorsoperators

• do not re-invent existing standards (use ITU and IETF protocols wherever do not re-invent existing standards (use ITU and IETF protocols wherever possible)possible)

• Based on H.323 version 2 series and existing SCN standardsBased on H.323 version 2 series and existing SCN standards



® Scenario 1: IP to SCNScenario 1: IP to SCN

Switched Circuit Network

IP Network

Originator: H.323 Terminal

Access

InterworkingFunction

Target: SCN Terminal

Issues:

• How to find appropriate gatekeepers & gateways? (Least-Cost-Routing)

• How do service-providers assure quantifiable QoS across different networks?

• Authentication & Authorization of Internet users

• SS7 interworking



® Scenario 2: SCN to IPScenario 2: SCN to IPOriginator: SCN Terminal

IP Network

Target: H.323 Terminal

Access



Issues:

• How to translate E.164 numbers into IP addresses? (in other words, how do we find the home-gatekeeper?)

• How to accommodate Roaming IP users?

Issues:

• How to assigne E.164 phone numers to IP Hosts?



® Scenario 3: SCN to IP to SCNScenario 3: SCN to IP to SCN

Target: SCN Terminal

Originator: SCN Terminal

IP Network





Issues:

• Support of 1 stage dialling

• Finding Gatekeepers & Gateways (Least cost routing)

Issues:

• How to support Network-to-Network information (NNI)?



®Working Group 5:Working Group 5:End-to-End Quality of ServiceEnd-to-End Quality of Service

•QoS:QoS:

•The collective effect of The collective effect of service performance which service performance which determine the degree of determine the degree of satisfaction of a user from satisfaction of a user from the service.the service.

•WG5 Defines:WG5 Defines:

•Existing Quality of Service Existing Quality of Service practises, specifications and practises, specifications and technologies to provide an technologies to provide an overview and “state of the overview and “state of the art” for both voice over art” for both voice over packet networks and packet networks and Switched Circuit Networks Switched Circuit Networks (SCNs).(SCNs).

•Differentiated QoS Differentiated QoS LevelsLevels

•4 Quality levels to provide a 4 Quality levels to provide a common language among common language among operators.operators.

few ms

echo path

PSTN PSTNGG IP network

ECEC

hundred ms

few ms hundred ms few ms

few ms

Delay Budgets

Best High Medium Best

Effort

MOS

Quality:

4.0 - 5.0 3.8 - 4.2 2.9 - 3.8 2.0 - 2.9

Mouth-to-

Ear Delay:

0ms -

150ms

150ms -

250ms

250ms -

450ms

450ms and

above

Call

Setup:

0 sec - 1

sec

1 sec - 3

sec

3 sec - 5

sec

5 sec and

above

Quality Levels


® WG5 and QoSWG5 and QoS

• More efficient backbone useMore efficient backbone use– Packet Header CompressionPacket Header Compression– Silence suppressionSilence suppression– advanced compression advanced compression

• The recoding issueThe recoding issue– IP Phone to GSM terminalIP Phone to GSM terminal

• The Emodel and MOS-omenterThe Emodel and MOS-omenter

• Signalling for QoSSignalling for QoS



® TIPHON AchievementsTIPHON Achievements

• Scenario 1 Largely Complete, including:Scenario 1 Largely Complete, including:

– Service Specifications:Service Specifications:» Including Requirements, Architecture, Protocol Including Requirements, Architecture, Protocol

(H.323v2 Profile), Addressing, QoS Language, and (H.323v2 Profile), Addressing, QoS Language, and VerificationVerification

– Mandatory support for FastConnectMandatory support for FastConnect

– Mandatory support for H.245 TunnelingMandatory support for H.245 Tunneling

– Mandatory support for the Gatekeeper-Mandatory support for the Gatekeeper-Routed-Call ModelRouted-Call Model

– Reconceliation and Pricing Exchange Reconceliation and Pricing Exchange Protocol Largly CompleteProtocol Largly Complete



® Current WorkCurrent Work

• Currently Working on:Currently Working on:

– IP/SS7 InterworkingIP/SS7 Interworking

– Security ProfilesSecurity Profiles

– Gateway Functional DecompositionGateway Functional Decomposition

– Inter-Gatekeeper and Inter-Domain Inter-Gatekeeper and Inter-Domain CommunicationsCommunications

– QoS SignallingQoS Signalling

– Terminal/User Roaming and MobilityTerminal/User Roaming and Mobility

– Service MobilityService Mobility

3Com Product Icon Library. 03/98


®

A4IE - The Alliance for the A4IE - The Alliance for the Internet in EuropeInternet in Europe

• Are we building the necessary infrastructure Are we building the necessary infrastructure to ensure sustained Economic growth in to ensure sustained Economic growth in Europe ?Europe ?



®


• We peer more readily with US carriers than We peer more readily with US carriers than which each other.which each other.



®


• US Government recently announced 500000 new green cards for IT US Government recently announced 500000 new green cards for IT professionalsprofessionals

• Internet 2 is designed to further US leadership of the InternetInternet 2 is designed to further US leadership of the Internet

• Today, a bank gets the best European coverage if it locates its Today, a bank gets the best European coverage if it locates its ECommerce Web site in New York rather than EuropeECommerce Web site in New York rather than Europe



®

Peering and QoSPeering and QoS

• European carriers connect their Internet European carriers connect their Internet Infrastructures at:Infrastructures at:– Bi-Lateral Peering pointsBi-Lateral Peering points– European Internet ExchangesEuropean Internet Exchanges– US-based NAPs (network access points)US-based NAPs (network access points)

• Connection does not guarantee PeeringConnection does not guarantee Peering

• Customers have absolutely no visibility of Customers have absolutely no visibility of QoSQoS– They are sold bandwidthThey are sold bandwidth– There are good commercial reasons why There are good commercial reasons why

peering is as it ispeering is as it is



®

A4IE’s GoalsA4IE’s Goals

• Provide a forum for dialogue on Internet Provide a forum for dialogue on Internet issues between:issues between:– carriers, carriers, – businesses, businesses, – industry, industry, – government government – educationeducation

• Compile and maintain information about Compile and maintain information about Internet issues to facilitate this dialogueInternet issues to facilitate this dialogue

• Next Meeting: 15th DecemberNext Meeting: 15th December



®

Barry CastleBarry Castle

3Com Public Affairs3Com Public AffairsVice-Chairman ETSI TIPHONVice-Chairman ETSI TIPHON

[email protected][email protected]

tel: +44 541 540 621tel: +44 541 540 621

® Barry Castle 3Com Public Affairs Vice-Chairman ETSI TIPHON [email protected] 9th October 1998...

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Transcript of ® Barry Castle 3Com Public Affairs Vice-Chairman ETSI TIPHON [email protected] 9th October 1998...