|. Introduction Quality needs time in education as in science – to teach more about new technologies – to find new services in the IT-landscape – to

|.Introduction

Quality needs time in education as in science

– to teach more about new technologies– to find new services in the IT-landscape– to develop new products and services– to find group of interests

… time is a factor for quality. So we are sorry to get

slowly access for the ENUM-Trial, to present to you.

|.Index and themes

What is ENUM ? How is ENUM working ? What is a NAPTR RR ? Which numbers could be registered ? What is an E.164 number ? What is an E164.arpa Domain ? Which possibilities could be realized about

ENUM ? Who can use ENUM ?

|.What is ENUM

What means ENUM ? ENUM: electronic telephone number mapping

telecommunication- and internetservices could be connected about this protocol.

ENUM gives instructions to build telephone-numbers as a domain in RFC2916-Protocol of the ICANN

the „ENUM“-Domain can provide different services by using the DNS (for E-Mail, websites, Unified messaging)

|.What is ENUM

An "ENUM"-Domain can manage different services of telecommunication like:

GPS GPRS Fax Voice-communication mobile communication and can assign them to different enddevices

|.How is ENUM working Enter a number by an ENUM-supported telephone

e.g.: +49(country) 361(area-code) 3914866(user)

The phone changes the number into a Domain and a DNS-Request is starting in an IP-Network (WAN). e.g.: 6.6.8.4.1.9.3.1.6.3.4.9.E164.arpa

In the result of DNS-Query could be found some resource records from registration and the handling of incoming requests for e-mails, calls,…

The called person can talk now through PC to the PSTN, or redirect the call automatically to a mailbox or an other configured service in DNS or PSTN

|.What is a NAPTR RR NAPTR is an entry in a Domain Name System

(DNS)

NAPTR RR: Naming Authority Pointer Resource Record

With NAPTR you can decide how to handle with requests.

You can switch calls with SIP (Session Initiation protocol) to the configured address.

|.What is a NAPTR RR

10 10 u E2U+tel !^.*$!tel:+493613914866!. ^ Type:

Name of Resource Record


10 10 u E2U+tel !^.*$!tel:+493613914866!. ^ Order:

If you have the some "Order"-number, the preference will be call up at first.


10 10 u E2U+tel !^.*$!tel:+493613914866!. ^ Flags:

Controlling and transformation of the requested- system (e.g. phone) to an URI


10 10 u E2U+tel !^.*$!tel:+493613914866!. ^ Service:

protocol of requested service and resulotionservice for SIP (DNS-DNS) and E164 (PSTN - DNS) to an URI


10 10 u E2U+tel !^.*$!tel:+493613914866!. ^ Regexp:

regulary term for transformation of the request

For 6.6.8.4.1.9.3.1.6.3.4.9.e164.arpa


|.Which numbers could be registered

The DeNIC e.G. allows to register following numbers which consist of allowed:

geographical numbers (e.g.: +49, +43, +81, …)

+ area code (e.g.: 69, 361, 341, …) code of networks for cellphones ( 15x, 16x, 17x)

+ telephone number (3914866, …)

|.Which numbers could be registered

The DeNIC e.G. allows also to register following numbers:

national freecall numbers (0800) national personality numbers (0700) other serviceline codes like 0180,… will be accept

in future of the pilot-project

|.What is an E.164 number It is a recommened type of international telephone

number

An E.164 number consist of an uniform principle: the fixed area code for countries (Germany is +49) an area code in the country the number of user of the PSTN the E.164-number is a decimal type and is acceptet to an

maximum lenght of 11 numbers

Area code + local code + max. 11 numbers ( +49 / 361 / 3914866 )

|.What is an E164.arpa Domain Arpa is a Top-Level Domain which can be reached

about all Root-Servers and is managed by RIPE

E164.arpa is a Second-Level Domain for ENUM

9.4.E164.arpa is the ENUM-Domain for Germany and is controlled by DeNIC e.G in Frankfurt/Main

Service-providers like T-Systems offers numbers for customers, e.g.: 6.6.8.4.1.9.3.1.6.3.9.4.E164.arpa

|.Possibilities of ENUM Networkelements could be found about one number

Services could be found with one number about DNS > E-Mail, GPS, Voice-Communication, Fax, Mailbox,…

The User can define the handling of requests, well known of 0700-Services

creating a solution to connect PSTN with persons who uses Voice over IP

with ENUM numbers also older phones can be connected to users in Internet

|.Who can use ENUM

private persons who would like to know more about this.

ISP's who want to make profit with this service.

|.See some demos

Login to trial-domain.

|.See some demos

Edit NAPTR.

|.See some demos

Edit local SIP.

|.See some demos View a call history.

|.See some demos Call and view a call history.

|.See some demos Call about SIP.

|.See some demos Incomming call.

|.See some demos called false number.

|.How to get a ENUM-Domain. 1. You must be owner of phone-number

Mobile phone Service line

2. Request an ENUM-Domain T-Systems Berkom GmbH, DeNIC, Mobilcom, noris network

GmbH There are more as 100 test operators

3. Documents Bill with owner Driving-license with address or identity card

|.How to get a ENUM-Domain.