AG Projects NGN Signaling Forum - 2006 Telecom Signaling Networks and Service Forum January 17, 2006...

AG Projects NGN Signaling Forum - 2006

Telecom Signaling Networksand Service Forum

January 17, 2006Amsterdam

I am a bachelor of electrical engineeringMember of ETSI ENUM task forceMember of management board of

OpenSER projectCo-chair of ISOC NL SIP Working groupFounder of AG Projects

I am Adrian Georgescu

AG Projects delivers simple SIP and ENUM solutions that delivers today what IMS promises it will deliver tomorrow

The opinions expressed in this presentation belong to myself, my company and most of my friends

Numbering and addressing in NGNBusiness models around ENUM

For those who don't know NGN is the Internet

Even if you don’t agree with it

All IP means the Internet

full stop.

From the old PSTN ONLY the E.164 numbering plan remains

SS7, ISDN, MTP, SCP, SP, TCAP, ISUP, MAP, IN all go away

And you migrate to all IP, SIP based communications

Using the big, bad, ugly Internet

No QoS, no guarantee, no central control, no regulation, no monopoly

Internet, a dumb network

Its role is merely to deliver packets from A to B

The services (applications) are performed at the edge and not in the center

DNS is the only centralized resource on the Internet

DNS (Domain Name System) provides naming and addressing for the Internet

Internet is different than the PSTN

In PSTN the “intelligence” is at the center and the end-device is dumb

This why you still get only voice after 100 years of innovations

0800, 0900, prepaid, IVR all together is just one application: VOICE

On the Internet voice is just another application

Don’t negate it, on you laptops you have more then voice

Do you use SIP today?

Because of the laptop software policy of your employer it could be that you never experienced voice over IP

Not knowing how Internet works, is an ingredient of going bankrupt

Internet is based on the end-to-end principle, all “services” may be offered anywhere and can be accessed from everywhere

In Internet you have connectivity and applications

Voice is just another application

Next to email, web and others

Voice and other communications do not need a “service” provider at all, they are applications.

–Jon Peterson, ITU-IETF NGN Workshop, Geneva, May 2005

Actually, there is plenty to do for an operator if you don’t clutch at penny per minute anymore

Replace your marketing department and you will see how competitive and innovative you become

Internet intelligence is at the edge, this opens the competition with any new entrant

You most important technical assets today (your signaling point presence on the SS7 network) is not anymore a critical advantage

Today some work hard on copying PSTN concepts over an Internet infrastructure

IMS is an example of such concept

Technically complicated, appealing for decision makers who still try to lock users in a walled gardenVery good for the vendors

Differentiation in price become less and less an argument in a flate-rate services model

Paying for two networks PSTN and Internet is expensive, migrating to an all IP network should be cost effective

But you cannot keep the benefits for yourself, you must share them with your customers

You should not pay to migrate to IP if all you can offer is an old voice service

You cannot maintain your today’s revenues while offering only voice and paying for migration to IP

Innovation is the only possible driving force for new revenues, voice should be only one of the possible services

And innovation happens only at the edge, so don’t build a walled garden

Building walled gardens does not justify the costs and limit the innovation at the edge, the basic principle that boosted the Internet

By the time you finish building up your walled garden, the customers will be safely outside.

Adrian Georgescu

What assets do you have compatible with the Internet?

Your customers, obviously!

What can you offer them in the NGN context?

Internet Access (Copper, Fibber, Wireless)

Identity (SIM card)

Terminals (devices and software)

Presence (Integration between communication and business)

Digital identity and certificate management

Addressing and Numbering

Connection to and from PSTN

Addressing and Numbering

Address is a sticky product

Sticky products means sticky customers

You don’t want to loose your e-mail address, right?

Some accept to loose their telephone numbers and get new ones because of the geographic nature of numbering resources

NGN main addressing scheme is a SIP address

User@Domain

You can use a number but is still a number@domain

Number@Domain

A telephone number is just another attribute of the SIP address

You can have more than one telephone number mapped to a SIP address

My identity is ag@ag-projects.com

You can reach me by both email and voice using SIP to ag@ag-projects.com

I want to be reachable also from PSTN or IP devices with 12 keys

You can reach me if you dial:

+31208005169+40317105169 ag@ag-projects.com

henry@mci.com

From PSTN or Internet

From the Internet

Mapping E.164 telephone numbers to IP addressing schemes is called ENUM

ENUM is defined by the Internet Engineering Task Force (IETF) in RFC3761 as:

the mapping of „Telephone Numbers“ to Uniform Resource Identifiers (URIs) using the Domain Name System (DNS) in the domain e164.arpa

The purpose of ENUM is to enable the convergence between the PSTN and the Internet and enable new applications based on E164 numbers

ENUM has been only recently adopted by 3GPP

ENUM is used today by VoIP operators. Eithout it, calls between their islands will still go through PSTN

Without ENUM there is no way you can address a subscriber from one IMS domain to another one

Because any number on IP is Number@DomainThe Domain part can be looked up only by an ENUM query

ENUM allows you to point a numbering resource to its network hosts and specify which protocol can be used to connect SIP,H323, SS7, Email, more than 15 are standardized today

Number portability on PSTN

Current telephone number portability works with limited success and dependent on regulatory in each country

VoIP Providers depend on SS7 IN database for number portability, is slow expensive and not Internet ready

• It takes 3 months to port my number from KPN to Vodafone• Porting numbers between mobile and fixed operators is still a

dream• Cannot port numbers from one country to another

Number portability on IP

By simply pointing the website name to the new IP address of the server you are done

When you move your website from one hosting provider to another you get a new IP address but you do not change the name of your website

On the Internet you already have portability. Without maybe being aware, everybody is using it, the DNS.

• You don’t send a fax• You don’t wait for 3 months• You do it yourself when you want and how you want

There is no regulatory, agency or government office that intermediates the changes in the DNS.

Internet is much more cost effective than PSTN, there are no administrative barriers that hinders the porting process

SIP protocol: maps the phone IP:port to a SIP address

ENUM protocol: maps the E.164 number to a SIP address

SIP with ENUM combine the logic of uniting the identity (from both Internet and PSTN) with the access, the device and the service

Voice over IP is another Internet application, so we can use the same principles that apply for web and e-mail

Sip:1234@provider1.com Sip:5678@provider2.com

alice@example.com

+1-123-456789

End-user experience of number portability on IP

Business models based on ENUM

You can sell identities independent of the VoIP service

Connect VoIP islands (ENUM exchange)

Sell DID numbers worldwide

Enable video and IM for enterprises

Number portability solution (can replace COIN)

This presentation is available at:

http://ag-projects.com/ENUM/

Thank you

Adrian Georgescu ag@ag-projects.com

AG Projects NGN Signaling Forum - 2006 Telecom Signaling Networks and Service Forum January 17, 2006...

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