1. The Austrian ENUM Trial is closing down 59 th IETF Seoul, South Korea, March 3 rd, 2004 Richard STASTNY ÖFEG, Postbox 147, 1103-Vienna enum:+43 664 420 4100 E-Mail: richard.stastny@oefeg.at richard@stastny.com

2. Richard Stastny 2  The Austrian ENUM TRIAL Platform has fulfilled its task:  demonstrated the feasibility of ENUM (proof of concept)  has its lessons learnt  solved the open issues (e.g. validation, numbers to use) (more or less ;-)  considers ENUM ready for production  so the trial phase is ending  For commercial deployment it is required  to create a legal framework and  to use an (existing) official platform (AK-TK)  (existing) Austrian Platform for technical co-ordination of public telecommunication networks and services  ENUM will be a Working Group within the AK-TK Why?

3. Richard Stastny 3  New Austrian Telecommunication Law (TKG 2003)  based on the New European Framework (NRF)  New Numbering Ordinance in Austria (in consultation)  taking ENUM already into account  Contract between NRA (RTR) and Tier 1 Registry (nic.at)  contains the policy framework for ENUM  the charter for the 3.4.e164.arpa domain  the validation guidelines for the Registrars  basic technical, operational and administrative requirements  additional technical recommendations from the AK-TK Legal Framework

4. Richard Stastny 4  Basic issues solved  ENUM technology works,  ENUM policy and administration: most problems solved,  but shift in focus for the business models.  The original business model of ENUM for residential subscribers with opt-in for existing numbers has problems:  it's a second line service,  privacy problems with multiple services (e-mail spam)  Validation and re-validation problem, …  but the major problem is: How to overcome Metcalfe's Law?  The usefulness, or utility, of a network equals the square of the number of users  so new approaches are needed. Lessons learnt in the ENUM Trials

5. Richard Stastny 5  New approaches for IP Communications with ENUM:  ENUM for IP-based private networks ("PBX") with direct dial in  ENUM-only routed number ranges for IP Communications  mobile numbers with validation via the SIM-Card  and then the re-launch of the original ENUM model starting with teleworkers and road warriors to overcome Metcalfe's Law  Note well: IP Communications is not IP Telephony  it is IP based services  one of these services is VoIP - and others like:  Directory, Mobility,  Instant Messaging, Presence, Video, Chat, SMS, and, and, …  will become more and more important New approaches to ENUM

6. Richard Stastny 6  geographic numbers (fixed)  yes, with and without ENUM (opt-in)  also for IP Centrex and IP PBX with and without ENUM (opt-in)  numbers for networks (fixed and mobile) - 05xxxx  yes, for IP Centrex and IP PBX with and without ENUM (opt-in)  mobile numbers – 06xx  not yet, but ideal for ENUM (opt-in) (and later with 3GPP)  national portable numbers (fixed, mobile, personal) - 720  yes, with and without ENUM (opt-in), UPT services possible  numbers for convergent services (mobile, personal) - 780  ENUM-only or ENUM-routed numbers, for virtual service providers  a number is valid only if there is a corresponding ENUM domain and it can be routed only via ENUM  On the PSTN the number needs only to be routed to a generic ENUM-enabled gateway National Numbering Resources for VoIP

7. Richard Stastny 7  Identification of E.164 number assignees within the ENUM system  necessary for ENUM-only routed numbers (if prepaid is not allowed)  for other numbers depending on identification required for E.164 number  (Re-)Validation: (re-)check the right to use the E.164 number  this does not necessarily require identification within ENUM  Validation methods are therefore dependent on the number range used:  ENUM-only routed numbers (+43780) (infrastructure)  only identification may be required, validation implicit  Mobile numbers (opt-in)  validation via SIM-Card (e.g. SMS)  numbers directly assigned to end-user (e.g. private networks) (opt-in)  validation via assignment document  geographic numbers (opt-in)  validation via credentials under investigation  If Registrar=TSP: Identification and Validation internal matter Validation and Identification

8. Richard Stastny 8  Establish a national policy framework  Start commercial deployment of ENUM 2Q2004  Residential customers  ENUM-only routed number range +43780  Mobile numbers (opt-in)  geographic numbers (terminating on IP) (opt-in)  geographic numbers primary line on PSTN (opt-in)  Corporate Customers (IP PBX and IP centrex)  geographic numbers incl. 05 (opt-in, IP PBX)  geographic numbers incl. 05 (ported out, IP Centrex)  Deploy Generic Gateway and ENUM access codes from PSTN  Enable numbers in ENUM for SMS and MMS  Provide trusted identification on SIP for CLI  Provide certificates for E.164 numbers  to be used in signaling and validation  Usage of SIM-Cards and IMSI for mobile IP Communications Austrian National Activities 2004

9. Richard Stastny 9  Make existing ENUM Implementations interoperable  ETSI ENUM Plugtest™ Workshop (February 24-25)  Update ETSI TS 102 172 V2 Mid 2004  add sms:/ems:/mms:mailto and sms:/ems:/mms:sip  ETSI ENUM Plugtests™ planned December 2004 and February 2005  Advance RFC2916bis to draft standard (IETF)  Register various "enumservices" with IANA  Make "Interim Procedures" permanent (ITU-T, IAB, RIPE)  next ITU-T SG2 Plenary in May  Establish national policy frameworks  22 CC already delegated in e164.arpa, more to come soon  Start commercial deployment of ENUM  some countries are already planning commercial deployments of ENUM during this year International Activities 2004

10. Richard Stastny 10  An URI (AoR) entered in an ENUM domain related to an E.164 number allows you:  to reach any destination on IP from the PSTN/ISDN  ported out, ENUM-only routed numbers, access codes, ACQ  to reach any destination on IP directly from IP  by dialing the full E.164 number as default  dialing local numbers and cross connections is still possible if a proper numbering and dialing plan is used  see I-D: draft-stastny-enum-numbering-voip-00.txt  and to reach any destination existing only on the PSTN  but only calls to numbers not found in ENUM are routed via the PSTN ENUM as a glue

11. Richard Stastny 11  Primary goals of ENUM:  Goal 1: Never touch the PSTN, if you can avoid it  Goal 2: If you cannot avoid it:  a. early exit from the PSTN or  b. late entry to the PSTN  Goal 3: enable IP Communications (SMS, MMS, Presence, IM, Video, …)  Some examples:  Corporate Users (Never touch the PSTN)  Broadband AT43 VoIP and ENUM Trial of the Uni Vienna  Linking IP PBX together globally  Generic gateways (early exit from and late entry to the PSTN)  for all ENUM-only routed numbers and others  Infrastructure ENUM  The freenum.org trial (late entry to the PSTN) Primary Goals of ENUM

12. Richard Stastny 12 The End Thank you for your attention Contact (not Content) is King Douglas Rushkoff www.enum.nic.atwww.enum.nic.at www.at43.at/en/www.at43.at/en/