voip': k. mcintyre, mitel: talk febuary 2003

1

VOICE OVER PACKET

Plymouth University

Feb 2003

Confidential

2

Network Access

Optical Interconnects & Components

Timing & Synchronization

TDM Switching

Voice Over Packet

User Access

Tuners & Demodulators

Digital TV

Cellular Handsets

Medical

Pacemakers

Audiologic

Ultra-Low Power RF

High Performance Analog

Packet Switching

Zarlink’s Product Groups

Confidential

3

Network Access

SIEMENS

User Access Medical

Zarlink’s Customers

Confidential

4

Packet NetworkATM / IP

MetroCore

Access Network or Wide Area Network

University CampusBusiness ParkResidential High Rise

Hospital/Clinic

Enterprise Access/Edge Core

PSTN / 3G

Access & AggregationEquipment

Switching CenterAnd Gateway

Typical Applications (Voice & Data)

Confidential

5

Network Access


MetroCore



Hospital/Clinic


PSTN / 3G



TDM• TDM Switches • Network Timing &

Synchronization• Telephony

ATM• Inverse Multiplexing

access• AAL2 SARs

IP• Ethernet Switches• Voice over Packet

Processors

Zarlink’s Solutions (1)

Confidential

6


MetroCore



Hospital/Clinic


PSTN / 3G



TDM• High Bandwidth

TDM Switches • SONET/SDH Network

Synchronization• High Density Voice Echo Cancellers

ATM• AAL1 SARs

IP• GB Ethernet Switches• Voice Over Packet

Processors

High Performance Analog

Optical• Components• VSR

Network Access

Zarlink’s Solutions (2)

Confidential

7

The Big Trend - Voice Centric to Data Centric

• Data services are the dominant traffic type– Intranet, internet and email are the main drivers

• CAGR data service 30-50%, voice 3-5%– Source: Adams, Harkness & Hill (2001)

• Consequence: New network architecture required within the access, edge and core networks

For source see speaker notes

Confidential

8

Moving Networks to a Packet Infrastructure

CPE Access Edge Core

RAS

Switch

Router

DSLAM

AggregationEquipment

BackboneEquipment

MovingTo VoIP

IP/Ethernet/TDM

IP/EthernetTDM

IP/MPLS

Confidential

9

Converged Network Architecture


RAS

Switch

Router

DSLAM


BackboneEquipment

SpeedIntelligence

Converged Networks Deliv

er Savings

Confidential

10

Edge is the Aggregation Point

• Terminates many traffic types

• Feeds into ATM and IP core networks– IP/MPLS and Ethernet are growing fast

– No new ATM deployments

• Supports legacy services– T1/E1 and DS3/E3 are included in this

• High Level of QoS

Source: Cisco’s MAN Overview

Source: Cisco’s MAN Overview

Confidential

11

However- Voice is Still the Problem

• There is a lot of TDM equipment and lines– With the downturn, TDM will be around for a long time– Capital expenditure is down severely

• However, suppliers need to address how to migrate voice from voice networks to data networks

• Service Providers are focusing on operational efficiencies– Hence the requirement for converged networks

• Voice in data networks is not easy– More bandwidth does not solve the problem– QoS is key, data networks must be engineered to support

voice– Voice cannot be toll-quality on unmanaged data networks

Confidential

12

Many Ways to Skin a Cat!

• VoIP– If voice and data are converged at the CPE then VoIP

makes the most sense– This is the end game of most companies

• CESoP– Circuit Emulation Services– If the infrastructure is TDM, and point-to-point, then

CESoP makes sense– Simpler than VoIP– Great at point-to-point links

• VoWLAN– Similar to VoIP, added advantage is mobility

Confidential

13

Technical Drivers for VoIP

• Technical Driver 1: Standards and interoperability now largely resolved– Will take time to filter through

– Over the next 24 months growth will be steady before more wide-scale adoption*

• Technical Driver 2: Natural evolutionary process of migration to VoIP– Enterprises and carriers are moving to VoIP now

– Evolution not revolution

* Source: Deutsche Bank Securities Inc

Confidential

14

Business Drivers for VoIP

• Business Driver 1: VoIP delivers mission critical services– Although this was always true, this was not the

perception• Business Driver 2: The economics of packet

transmission are becoming increasingly transparent to carriers and enterprises – We believe VoIP will gain increasing acceptance driven

by its relative network simplicity, lower cost structure and ability to carry both voice and data across a single, ubiquitous network*

– Beyond that we expect momentum to continue to build as new applications/services emerge that homogeneously combine voice/video/data*

* Source: Deutsche Bank Securities Inc

Confidential

15

VoIP Standards

DSPDSP

G.711, G.726,

G.729, G.168DTMF, VAD,

CNGFax/modem Termination

VoIP Engine VoIP Engine

UDP, RTP, Flexible PKT

Processor

TI DSPs/Control µP

TI DSPs/Control µP

HPIDSP Interface

ControlµP

ControlµP

µPInterface

Other VoIPParts

Other VoIPParts

Dua

l Exp

ansi

onP

ort M

AC

GM

II/M

II

TD

MIn

terf

ace

H.110Devices

H.110Devices

2 &

8 M

b/s

MemoryInterface

SDRAMSDRAM

Dua

l 100

Mb/

sO

r 1

Gb/

s

EthernetPHY

EthernetPHY

GM

II/M

II

Stratum4e PLL

Confidential

16

Market Forecasts (1)

• We estimate the market for VoIP equipment will grow to approximately $10 billion by 2005 from close to $2 billion in 2001– Although slow at present, we think the adoption of

VoIP will accelerate in 2004-2005 and continue through the remainder of the decade

– Source: Deutsche Bank Securities Inc.

• $3B for LAN telephony systems by 2005– Source: Cahners In-Stat

Confidential

17

Market Forecasts- PBX Market (2)

Confidential

18

Market Forecast- IP Core (3)

StandaloneGateways

CarrierGateway

Confidential

19

What is CESoP?

• CESoP “tunnels” T1/E1 traffic through packet networks whilst maintaining T1/E1 clock and data integrity.– Invisible to source and destination

– Packet network “emulates” a circuit-switched network, re-creating the TDM circuit at the far end

Packet networkT1/E1 line T1/E1 line

Confidential

20

Comparing VoIP to CESoP

Data Network

CES

T1/E1

Ethernet

PBXGateway

iPBX

TDM Based@ core

IP Based@ core

Bundled Voicenx DS0

DS0 GranularityManipulated voice

Confidential

21

Drivers for CESoP

• Allows ILECs/CLECs to leverage their existing T1/E1 and DS3/E3 infrastructure

• Whilst moving to packet based networks

• Allows customers to still get the same service, QoS and peace of mind as they already have– Don’t have to invest in new equipment

• Requires little new equipment

Confidential

22


MetroCore



Hospital/Clinic


PSTN / 3G



How will CESoP be deployed?

T1/E1

T1/E1T1/E1

Confidential

23

CES Standards

• Internet Engineer Task Force (IETF)– Pseudo wire end to end emulation (PWE3)

– Zarlink co-sign on draft specification

• ITU– Just started at this process, led by Nortel

• Metro Ethernet Forum (MEF)– CES is a service on MEN

– Zarlink editor on CES document

Confidential

24

The Future VoWLAN (1)

• Cost of WLAN equipment is falling fast, much in the way Ethernet did

• WLAN is moving fast– This year will be the year of WLAN hotspots

–Train stations, hotels, airports, coffee shops

– Today this is only data

• Additionally, wireless voice is happening in WLANs– Several companies have this equipment

– This will move to WLAN hotspots

Confidential

25

The Future VoWLAN (2)

• VoWLAN is inevitable for WLAN– It will deliver freedom to VoIP

– VoWLAN with 2G/2.5G could give 3G serious competition

• Four major announcements:– Lucent UMTS 3G with WLAN.

– Ericsson partners Agere for WLAN hotspots.

– Nokia equipment for 2G/2.5G/3G and WLAN hotspots

– Motorola, Proxim and Avaya partner for Phone/WLAN hand-over

Confidential

26

The Consequence of Delayed 3G

• US$107 billion on licenses and infrastructure in Europe • The European wireless market now doubts whether it

will ever recoup its investment. • As a result:

– Carriers scaling down their 3G roll outs– Remain unwilling to spend more until real signs of

consumer interest demonstrate themselves• However, many European wireless companies are

excited about the emergence of Wi-Fi, which many European carriers hope to integrate with their existing GSM/GPRS networks.

– Source: www.reuters.com/newsArticle.jhtml?type=topNews&storyID=2257078 (Mobile Industry Struggles in Wireless Web )

http://www.reuters.com/newsArticle.jhtml?type=topNews&storyID=2257078











Confidential

27

WLAN Standards

• IEEE 802.11b– 2.4GHz @11Mbps

• IEEE 802.11g– 2.4GHz @ 54Mbps

• IEEE 802.16a WMAN– 10 to 66 GHz @ 54Mbps

– ‘It closes the first-mile gap, giving users an easily installable, wire-free method to access core networks for multimedia applications’

–Chair of the 802.16 Working Group on Broadband Wireless Access.

Confidential

28

The Future?


RAS

Switch

Router

DSLAM


BackboneEquipment

MovingTo VoIP

IP/Ethernet/TDM

IP/EthernetTDM

IP/MPLS

WMAN

WLAN

w w w . Z A R L I N K . c o m

30

Enterprise

Optical Transmission

Core

MetroCore

MetroEdge

Ba

nd

wid

th

10/100/1000

10G/40G

T1 Lines1.544 Mb

Metro

Current Situation

EdgeAccess

Confidential

31

Mobile Switching Center & Gateway

Base-Station Transceivers

Radio NetworkControllers

3G

2.5G

2G

Mobility

TDMA 2G

N.A. GPRS 2.5G

W CDMA 3G

User AccessRadios for Handsets

Confidential

32

3G

2.5G

2G

Mobility

Mobile Switching Center & Gateway

Base-Station Transceivers

Radio NetworkControllers

Network Access

• TDM• ATM• IP• Timing

TDMA 2G

N.A. GPRS 2.5G

W CDMA 3G

User AccessRadios for Handsets

voip': k. mcintyre, mitel: talk febuary 2003

Documents

voice voice

voice networks

voip equipment

ubiquitous network

converged networks voice

voip enterprises

adoption of voip

voip business driver