telecom italia lab 2nd may 2001 next generation services & next generation networks - soft...

Telecom Italia Lab

2nd May 2001 Next Generation Services & Next Generation Services & Next Generation Networks -Next Generation Networks -Soft Switching & GatewaysSoft Switching & Gateways

Enzo GarettiMaurizio SivieroPaolo SenesiCorrado Moiso

2NGN – 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


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


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


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)


Next Generation Networks

Line Gateway

Trunking Gateway

Edge Router

Enabling Network Elements

Residential / SOHO

High Residential / SME

R!

Users of the final service

Corporate Clients

Users of theplatform

Start-up /Incubator

ContentProvider

Transport Network (TN)

Control Functionalities

SignallingAgent

Call/SessionControl

Policy Decision

Point

Device Server

Application Servers

Directory

AAA

User/ServiceAgent

PolicyRepository

Billing /E-Commerce

Unified-messaging

Legacy networks

Intelligent Network

MobileNetwork

Big Internet

ATM Network

Metropolitan Networks

Integrated Networks

SignallingNetwork

PSTN

ASP


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


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


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


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

0

200

400

600

800

1000

1200

2000 2001 2002 2003 2004 2005

Fixed Telephone Lines

Next Generation NetworkAccess Lines

OVUM forecasts:• Growth of NGN access lines• Steady fixed telephone lines

Source: Ovum 1999


Market Evolution250

200

150

100

50

1997 1998 1999 2000 2001

Traffic Projections for Voice & DataRel. BitVolume

Voice

Data(IP)

Source: Multiple IXC Projections


Market Evolution


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




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

Source: Nokia 2000


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


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


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



FinalClient

FinalClient

ContentProvider

ContentProvider

ApplicationProvider

ApplicationProvider

......

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, …)



Classical telephonic approach: long-term planning

Internet approach: trial and error

Ideation DesignDefinition ofrequirements Trial

NetworkDeployment

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


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



Soft Switching & Gateways


• 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


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


NGN - High Performance Data Networks

Enterprises

Consumers

ACCESS

CORE ROUTING & SWITCHING

EDGE ROUTING

Server

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


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


NGN - New Telephony

PSTN

!

DSLAM

!

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


NGN - IP Networking

Internet backbone

Internet access

Internet core

Netw.policy

ProxyCache

VAS

Directory&

Location

Userprofile

AAAServer

Corporate & business

Management Services

Value AddedNetworking 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


NGN - Enterprise Internet Solutions Design & integration of complete solutions:

Data Intranet, IP VPN, Voice-data integrated solutions (VoATM, VoIP) video communication solutions & multicast audio-video solutions

over Intranet Support to operation:

re-dimensioning, management, monitoring

INTERNET

IPnetwork services

Headquarter

SOHO

Remote Site

Mobile UserPSTN/ISDN/PLMN

ATM/FRnetwork services

New solutions for corporate networks

telecom italia lab 2nd may 2001 next generation services & next generation networks - soft...

Documents

ngn soft switching gateways

generation networks

mobile services europe

ip servers

presentation market

mobile switched networks

equipment networks equipment

internet mobile accesses