Telenor and TISPAN NGN. Judith Rossebø, ETSI TISPAN Security WG Chairman Senior Research Scientist, Telenor

Telenor and TISPAN NGN Judith Rossebø, ETSI TISPAN Security WG Chairman Senior Research Scientist, Telenor {[email protected]} Telenor Tele...
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Telenor and TISPAN NGN Judith Rossebø, ETSI TISPAN Security WG Chairman Senior Research Scientist, Telenor {[email protected]}

Telenor Telenor facts facts •

One of the world’s largest mobile operators with 147 mill. mobile subscriptions* * 100% figures - all companies per Q1 2008.

Norway’s leading telecommunications company

Largest provider of TV services to the Nordic market

Total workforce: 35,150 man-years (25,350 outside Norway)

Market value as of 30 April 2008: NOK 169 billion

Norway Telenor


Denmark Sonofon


Sweden Telenor


Pakistan Telenor Pakistan 100%

Hungary Pannon


Bangladesh Grameenphone


Montenegro Promonte


Thailand DTAC

65.5% (*)

Serbia Telenor


Malaysia DiGi


Ukraine Kyivstar


Russia VimpelCom


*Economic exposure


Telenor Involvement in Standardization and Fora Telenor is engaged in several Standardization organizations and Fora: – ETSI TISPAN, STQ, ESI, SCP – 3GPP – IEEE 802 – ITU-T – IPsphere Forum – OMA, OMTP – GSMA – NGMN Standards to simplify service deployment, cost efficiency, access independence …. a commercially sustainable framework for providing IP services.


Next Generation Network - a reference architecture Horizontal layering - modular, flexible architecture Vertical (service specific)

Horizontal (service integration) Customers


Internet Internet


Cable-TV Cable-TV

Satellite Satellite

Mobile Mobile


Applications/ Stream Web Web Message StreamVoice Message Voice … content … Service enabler/ Session engine




Access Cellular Fibre DSL Fibre WLAN DSL Cellular WLAN


Long term vision

”Any service, any terminal, anywhere, anytime, to anyone”


Next Generation Network – Why TISPAN?

New standards driven by new architecture and new business aspects

Telecommunication and Internet converged Services and Protocols for Advanced Networking


TISPAN – beyond R2 – important topics • IPTV • QoS in a multi-service environment – RACS can help us to achieve this – End to end QoS

• Security – IPTV security (enhancement of stage 2, definition of stage 3) – Security for CNG/CND (stage 1, stage 2, stage 3) – Analyse the inter-relation between security features and architecture of the NGN (IPTV, NAT-T, NASS, RACS etc.) in terms of how to employ consistent security architecture and mechanisms

• IP Interconnection • Standardize elements and reduce complexity of the NGN


TISPAN approach to security

TISPAN Working Group (WG) 7 is responsible for the management and co-ordination of the development of security specifications for TISPAN. • For the NGN, TISPAN WG7: – Defines security requirements; – Defines the security architecture; – Conducts threat and risk analyses for specific NGN use cases; – Proposes countermeasures.

WG7 security standardisation is risk-based: Using the ETSI TISPAN methodology for systematic threat, vulnerability and risk analysis (TVRA)


IPTV-Security Requirement Approach. Development of IPTV-building blocks. • Analyze IPTV services. Based on this analysis, design an appropriate security model.

1 Service Requirements Threats Security Requirements

– Based on Service requirements*, identify security objectives and threats and from that deduce security requirements – Define security architecture taking into account service and security requirements – Develop appropriate countermeasures as re-useable building blocks

2 Architecture Security Architecture (Functions)



Protocols Security Counter-measures (Mechanisms)

* References: ETSI TS 181 016. TISPAN; Service Layer Requirements to Integrate NGN Services and IPTV. ATIS. IPTV DRM Interoperability Requirements. ATIS-0800001. ATIS. IPTV Architecture Requirements. ATIS-0800002. 8

IP-related interconnection Calling Party Pays


Originating Network Service Layer (“new IPX part”)

Service Aware for event based and stream based traffic


Terminating Network Routing and Addressing Function

“On-Net” Services SIP Proxy/Hub Inter-operator IP Packet Exchange (IPX) Eg, SMTP MMS Other Hub/Proxy (Managed)

Calling Party Pays

Traffic detection for routing, charging and Multi-lateral destination policing

Eg, SIP Voice

Eg, IM & Presence

Other Hub/Proxy Accounting Function Multi-lateral connection Mgmt

Public Mobile Network

Best Effort QoS

Third Party Provider

Network Layer (“existing GRX part”)

Third Party Subscriber

Interactive QoS

Corporate Streaming QoS Conversational Network(Voice) QoS

Content Provider

Calling Party Pays

Public Mobile Network

Conversational (Video) QoS

“Off-Net” Services Internet (Unmanaged)

Mobile Subscribers

Third Party Provider

Corporate Network

Mobile Subscribers

Content Provider

{source: GSM Association}


VoIP interconnection Challenges with current situation: Service providers are creating isolated islands of users that must use the PSTN to complete their calls, even if the destination is a VoIP user. Limits the utility of future VoIP applications and the full potential of lower costs.

… eCommunities Enterprise networks

PSTN Cable networks

An eCommunity user can connect to any other eCommunity user for free (pure IP), but must pay for calls sent The point of connection to the PSTN network and received from nonin regards to location of call termination eCommunity users. The same determines the cost. commonly holds for wireless and other TDM or VoIP provider customers. {source: IntelePeer ™, 2007} Prior registry approaches have failed because most registries only enable IP – IP connections: - limited economic benefits - and narrow range of total call volume

Wireless networks


Conclusions • TISPAN adresses important NGN standardisation aspects – Security – performance (QoS) – IPTV – IP-Interconnect

• Standards are important for Telenor – For interoperability – For deployment of services – Arena for expert networking


Telenor - here to help

Be inspiring 12

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