Developing IP Phones

Karen HongDirector, Product Marketing

8x8 Inc.

Residential Broadband VoIP Market

0100002000030000400005000060000700008000090000

2003

2004

2005

2006

2007

2008

Thousa

nds

of Connec

tions

BroadbandWith VoiceBroadbandWithout Voice

Voice over Broadband Penetration

1%

7%

16%

25%

34%

42%

Source: Gartner

North American Market

Target Applications: Residential

Broadband

POTS

Internet

10/100BaseT

10/100BaseT10/100BaseT

IP PhoneDSL or

CableModem

WAN

ATA AND AP Can be integrated today with WLAN

Packet Phone Adapter

AP / Router / Gateway

IAD

WiFi card

VoWi-Fi

ATA

POTS

10/100BaseT

Softphone

ATA+5.8Ghz cordless

Videophone

Residential VoIP Product Segmentation Current Market Segmentation for Residential VoIP End

Points IP Phones/Phone Adapters (Terminal Adapters):

• Basic interface device converting analog phone traffic to IP based traffic; a voice only device with no data capability

Residential Voice Gateway (RVG):• Standalone voice appliance converting analog phone traffic to IP

based traffic AND data routing for home PC connectivity in a single device

Integrated Access Device (IAD): • Integrated voice/data/broadband modem solution collapsed into a

single standalone unit VoWLAN (Wifi-phone)

• Integrated voice/data/broadband modem solution collapsed into a single standalone unit

IP Phones/TAs Key Features

IP Phones/Phone Adapters (Terminal Adapters): 1 to 2 RJ11 ports for phone termination 1 Ethernet port for interfacing to Broadband Modem or router Supplementary Service Support SIP Telephony only features

Low-End Solution Optimized for low cost Complete voice feature requirements but no data features

Key Features Voice Processing: G711, G729ab, G723.1, Echo Cancellation, Tone processing, T.38 fax, etc SIP protocol, provisioning

Typical Positioning Lowest cost device for IP residential telephony (ignoring the PC only, peer to peer services) 1st phase of service provider subscriber offering Relatively mature market

Residential Voice Gateway Key Features

Residential Voice Gateway (RVG): 2 RJ11 ports for phone termination 2 Ethernet ports: 1 for interfacing to Broadband Modem, 1 for PC or router Supplementary Service Support SIP Telephony Data (Routing/Firewall/NAT) WLAN option

Multiple Ethernet ports WAN connection to an external cable or DSL modem Single or multiple LAN connections direct to PCs or to home router WLAN AP Option

Key Features Voice Processing: G711, G729ab, G723.1, Echo Cancellation, Tone processing, T.38 fax, etc SIP protocol Service Provider provisioning Data/Voice routing, firewall, NAT, DHCP, etc.

Typical Positioning Low cost device for IP residential telephony Largest segment of current RGW market deployment with rapid growth Routing/Data features require networking and voice expertise Service providers quickly moving to WLAN solutions

Integrated Access Devices Key Features

Integrated Access Devices (IAD): 2 FXS ports for phone termination 1 Ethernet port for PC or router DSL or Cable modem interface for WAN Supplementary Service Support SIP Telephony Data (Routing/Firewall/NAT) Broadband Modem functionality WLAN option

WAN/Broadband Access Integrated cable or DSL modem

LAN Ethernet Interface Single or multiple wired ports Optional wireless access point

Key Features Voice Processing: G711, G729ab, G723.1, G729e and G728 for PacketCable, Echo Cancellation, Tone processing,

T.38 fax, etc SIP or MGCP protocol MSO/Service Provider provisioning Optional voice/data routing

Typical Positioning New Broadband subscriber deployment Driven by cable companies and DSL service providers Routing/Data features require networking and voice expertise Service providers quickly moving to WLAN solutions

VoWLAN Phone Key Features

VoWLAN (Wifi-phone): Low-cost phone which utilizes the WLAN and VoIP

infrastructure – not a GSM/CDMA handset or cellular-WLAN combo phone

Significant market interest in potential applications• mobility for traditional vertical markets• mobility for enterprise desktop and residential / DECT or cordless phone replacement

Solutions in the market today are limited (Spectralink, Symbol), proprietary and expensive – limited to niche vertical markets

Significant barriers to adoption exist:• cost must be comparable to DECT / cordless phones• low power consumption – minimum 4 hour talk time, 80 hour stand-by time• Standards – 802.11e (EDCF), 802.11i (WEP, TKIP, AES)

Targeted integrated silicon solutions are needed – Broadcom, Agere, TI, etc…

SpectraLink

Residential VoIP Product Evolution

IP Phone/Phone Adapter (Terminal Adapters)» Full Voice Features (Supplementary Services,

Provisioning, FAX, full vocoder support, etc…)» Video

Residential Voice Gateway (RVG) = Phone Adapter +» DECT or 5.8Ghz cordless phones» Routing/Firewall/NAT» PC interface» WLAN option» Video

Integrated Access Device (IAD) = Residential Voice Gateway +» Broadband Modem (DSL/Cable) Functionality

VoWLAN (Wifi-phone)» GSM/CDMA wireless » Smartphone concept» Video

Quality of Service • Network Performance Management• Audio and Video Codec

• Audio: G.729, G.711, G.722, iLBC, G.723.1• Video: H.263, H.264, MPEG4

• Acoustic Echo Cancellation• Jitter Buffer Control Management• Packet Prioritization

Tandem Silicon Approaches

AppsProcessor

DSP

Packet I/F

TD

M I/F

Expansion Bus

Packet I/F

DSPCore

Packet I/F

TD

M I/F

AppsProcessor

Core

Expansion Bus

Dual Chip Dual Core

VoIP

App

App

VoIPDual chip solution•High Power•Large Footprint•Complex PCB Design•Dual track tool chains•Increased/specialized training

DSP/AP SoC solution•Moderate Power•Moderate Footprint•Complex PCB Design•Dual track tool chains•Increased/specialized training

Source: Trinity Convergence

IP Phone SOC

MPISSI

4KB SRAM

ICACHE

DCACHE

KLCPPI

(LCD)USB1.1

UARTUART/IrDA

AMBA Peripheral Bus

ARM 940DCC

DSPRAM/ROM

DSP1600

AMBA System Bus

2-Port 10/100Ethernet Switch

MAC+PHY MAC+PHY

EMI

FLASH/SDRAM

SIO/SIO2

GCI+

BIO

CODECSAMP

FILTERS

NETWORK

Handset

Headset

Speaker Phone

Source: Agere Systems

Moore’s LawM

IPS

01 02 03 04 05

Available MIPS on Edge Device

MIPS for VoIP Channel

Insufficient MCPS in client device – additional external device (DSP) required

Increased device capability means VoIP is now a software-only function, using a fraction of the available processing power

Source: Trinity Convergence

Software DSP Applications Processor Approach

AppsProcessor

w/DSP Ext.

Packet I/F

HS

S

Expansion Bus

Single chip solution•Low Power•Small Footprint•Simple PCB Design•Single tool chain•Reduced training requirement

•Today’s Applications Processors have:• Substantial mips• Appropriate peripherals and I/O for VoIP• Hardware DSP acceleration• DSP extensions to instruction set

•Addressing ubiquitous silicon architectures permits VoIP without disruption•ARM Ltd. ARM926EJ, MIPS Technologies MIPS4K

100 MHz processors and greater for application plus VoIPSource: Trinity Convergence

IP Phone

SOFTWARE DSP APP

Source: Trinity Convergence

VoIP Enabled Home Gateway

Source: Trinity Convergence

SOFTWARE DSP APP

Silicon Processor based VoWLAN Terminal

CLCDCntl

Keypad

T8307Ultra Low Power

VoIP Engine

CSP2200Analog

Basebandand

PowerMgmt IC

Microphone

SPKR

Vibrator

Lithium-IonBattery

FLASH SRAM

WL60011Hermes 2.5802.11 a/b/

g/e/I(MAC)

802.11Basebandand Radio

Module

Source: Agere Systems

Residential Voice Gateway Segment Trends IP Phone/Phone Adapter

Originally low featured; trend is now toward a complete voice feature set equal to that of RGW products (fax support, Supplementary Services, provisioning, etc…)

Interfacing to home routers in addition to BB modem where many customers already have deployed a home routing solution in advance of subscribing to VoIP

Residential Voice Gateway (RVG) Rapid movement toward WLAN solution for routing BOM cost continues to be the #1 driver for

development QOS becoming a more significant requirement Automated provisioning, billing, & support transparent

to end customer

VoWLAN (Wifi-phone) Trend is moving toward dual mode solution

Thank You