VoIP - Technology To Business Models

Yossi Cohen DSP-IP

Overview

Voice Quality Automatic NAT/FW traversal Mobile VoIP Technological Issues

Most innovative VoIP services today are

a mix of the technologies described below

Secret ingredient?

Communication method bridging

Community/Sharing/Socializing

Quality

Wireless Technologies Voice Processing Transport NAT/FW P2P Jabber /XMPP SIP/Simple Secret Ingredient

The required voice processing modules

for a VoIP applications includes:

AEC (AES) – Acoustic Echo Concealment

Dynamic Jitter Buffer – has major effect on quality

Connection to sound card / microphone

DTMF

VAD, Mixer, AGC, NC (NS)

Voice quality monitoring

CODECs – G711, G729, G723.1, iLBC, GSM AMR (in mobile related applications)

Wideband codecs (8KHz VoIP)

GSM AMR WB – G722.1

iSAC 10-30KB

iPCM-WB – 80KB

Siren 7 – Polycom

UltraWideband Codecs (14KHz Voice)

Siren 14 – Polycom

Other open source codecs

Speex – Part of XIPH Project

SIP – Session Initiation Protocol

Used to initiate and control VoIP calls

Check security and P2P extensions

Open source implementations

SIPFoundry

Approved standard by the IETF with a

vibrant community extending the standard

XML-based protocol

<message from=‘yossi@dsp-ip.com’

to=‘a@x.com’>

<body>XMPP is easy!</body>

</message>

Numerous interoperable clients

Active Open Source and commercial ecosystem

Used by Google

Jingle

– Defines way for XMPP clients to exchange rich media.

– Audio is furthest along, but also work in progress for Video.

app sharing, etc.

Audio already in use by Google Talk .

– Makes it easy to work with SIP.

HTTP Binding

– XMPP over HTTP

– embed messaging and presence into any web page

with Javascript and Ajax.

– Possible Jingle integration for rich media in web pages? Perhaps using Flash ?

Personal Event PubSub (PEP)

– Share rich presence data like geo-location.

– Model to decide who to send what presence data to

- Connection to “Twitter”-like services

RTP – a simple real-time transport protocol

SRTP – Secure variant (exists in open source)

cRTP – Compressed headers version of RTP

NAT and Firewall traversal are key components in most VoIP applications

Several NAT traversal protocols exists:

STUN – scalable partial solution

TURN – less scalable complete solution

ICE – uses STUN or Turn

Several techniques for Firewall traversal

Usage of TCP/IP lowers voice quality

VoIP Quality – Skype example

Today “Skype better quality” is not an advantage but

a standard for VoIP applications

VoIP over WLAN

First Applications of VoIP over cellular, FMC

Video - PC

Skype as a pioneer again : VP7 video codec, not that important

NGN video IM - ooVoo

Avatars

Connection to CyWorld , SecondLife , social communities

Look at COMBots !!

Old Business Models & Their problems

Equipment vendors – Sell VoIP Equipment

VoIP Service Provider – Sell VoIP Service

VoIP Termination & Billing

VoIP Reseller Platforms

… .

Equipment Vendors Examples

VocalTec

VCON

Problems

Diminishing margins on equipment

Copied easily

Mind Set

How to Improve our EQUIPMENT

Goals: Add the new codec, lower BOM costs

The right Mindset

How to make it a better SERVICE

Example - Vonage

Revenues - VoIP subscription fees are:

None or Very low per minute rates/ low flat rate

Client Acquisition Costs - high

Vonage–150-200$ according to CEO interview

Offerings of “subscriber for sale” 200$ per head

Churn - high

No Differentiation: client on a 19.99 flat package will turn to a different vendor for 18.99

Examples

DeltaThree – VoIP Platform For MSN

Net2Phone – VoIP Platform for Yahoo!

Problems

No Real technology / Differentiation

Competition

Q: Who's Doing “VoIP Platform” for Yahoo today?

PC Based VoIP Mobile / Roaming Solutions

A Leading VC is looking for the next VoIP Monster.

Must haves

Huge user base

Marketing & Branding

High Revenues/ low CAPEX/ LOW Churn

Advantages (we can buy or outsource that later)

Voice Processing Technology

VoIP Signaling technology

Innovation

VoIP Termination, Billing

Existing Store / Content Portal – Big Advantage

Create a Community

Socialization

Information sharing

Community Bonding/Gluing

Socialization and search tools

Stronger relations and interactions between community members

Bridging Communities

Creating mutual interest spaces

Bridging technological Gap

Social VoIP Create Communities

Free Services

Goals

Group creation

Group Scaling

Identity

Connection

Basic communication

Presence

Premium Services

Goal

Revenues

Group border crossing communication

Presence – Mood

Personalization

Cross Group services

Cross technology services

VoIP<->PSTN

VoIP over Mobile

Free WLAN

Bridging Bonding Community Technology oriented premium bridging services Community free services

Usually free calls between subscribers PC over current Portal VoIP networks Lower than standard rates for mobile calls. EQO - Widget for MySpace for Mobile Fring – Leading Israeli Mobile VoIP Company iSkoot – Deal with Skype Mobile

Palore

Call and rate services like restaurants or plumbers

BitWine

Connection to experts

Kasamba

connect to expert, bought by LivePerson for 40M$ June 2007

Portals & IM Companies Social Networks Device Vendors

Compare to Middleware Market

Microsoft

Google

AOL

Yahoo

New Entrant – Adobe !

QQ – The first and the largest social network with its own VoIP

Facebook is playing with IM & Presence, VoIP will probably follow

Nokia

Adding SIP to phones

Creating its own content & Media store

Apple

Total control of Device

Its own Store

Adobe

Flash Platform already supports VoIP (not good)

The new release 10

better voice quality

P2P Capabilities

Look at Pacifica

Dramatic changes in pricing

Microsoft

Will probably do something in Silverlight

Sun (in Java)

Presence – its more important than cost

Saves leaving messages

Automatic Call Prioritization

Forward to Voice Mail

DND

High priority calls only

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VoIP - Technology To Business Models

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