nrenum.net An Update SIP.edu Call
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1 nrenum.net An Update SIP.edu Call
2 What is ENUM? E.164 Number Mapping RFC3761, and many other RFC's The common denominator A number ONE single number for multiple voice, video and data services PSTN SIP H.323 and many more
3 What is ENUM? tel: mailto: This is an ENUM... looks like a normal phone number to me sip:sam@sample.com h323:
4 Why ENUM? A motivating example: Imagine Alice has multiple Instant Messaging (IM) Addresses, e.g. Jabber, AIM, MSN, ICQ,... Alice might change them (or add a new one) at any time Is Alice really going to tell all her friends that her IM address has changed? Probably not How does she inform her contacts? Alice can make the changes once and in one place only: in ENUM Her contacts can always fetch the latest state from ENUM With ENUM Alice just needs to tell her contacts once her number, and the DNS figures out the rest!
5 Why ENUM? We still have 12-button phones; how do you dial a SIP URI for example? SMS style?? Are SIP URI's really easier to remember? Do you know instantly how to spell my last name? Have you thought about IDN's?
6 How about Grandma's phone?
7 Why ENUM? H.323 SIP PSTN IM WWW H.323 SIP PSTN IM WWW
8 Why ENUM? H.323 H.323 A s e a m l e s s ( d i a l i n g ) i n t e r c o n n e c t i o n b e t w e e n a l l t e c h n o l o g i e s!! > a n d t h e u s e r d o e s n t c a r e a b o u t i t!! SIP PSTN IM WWW SIP PSTN IM WWW
9 How ENUM works E.164 numbers are inserted into DNS Example for: Remove everything but numbers: Reverse it and put dots in between the digits: Add the suffix.e164.arpa : e164.arpa This is the DNS zone Fill this DNS zone with NAPTR records such as: IN NAPTR "u" "E2U+sip" "!^.*$!sip:info@vide.net!
10 ENUM apex The golden tree has the apex e164.arpa. Standardized by IETF Interim procedures with ITU involving the national regulators Brings in some trust Not available everywhere :-( NRENs additionally use the interim tree with apex nrenum.net. see next slides
11 The idea Provide an ENUM testbed to NREN's, who don't have access to the e164.arpa ENUM tree because: e164.arpa not delegated e164.arpa not usable Other issues Similar rules as in e164.arpa apply We are NOT competing with e164.arpa NREN take the role of a national Tier-1 Registry NREN to sub-delegate zones to Universities / Research Institutes
12 The Charter Current V.0.8 online Sections: Definitions Membership Objectives Composition of nrenum.net Milestones
13 Website / Information Website online at Mailinglist up and running Delegation request form online How-to's for H.323/SIP online GnuGK SER/OpenSer Asterisk SNOM360 SRV records
14 Current status ( participation Six delegations (in order of first Netherlands (SURFNet), +31 Slovenia (ARNES), +386 Greece (GRNet), +30 Hungary (Hungarnet), +36 Belgium (Belnet), +32 Italy (GARR), +39
15 Current Status Currently 10 countries are participating in nrenum.net NREN CC Populates tree Queries trees Populates NAPTR types Queries NAPTR types GRNET +30 nrenum.net e164.arpa, nrenum.net sip, h323 sip, h323 Surfnet +31 nrenum.net e164.arpa, nrenum.net sip sip BELNET +32 nrenum.net e164.arpa, nrenum.net sip (soon also h323) sip e164.arpa, HUNGARNET +36 nrenum.net nrenum.net sip sip Arnes +386 nrenum.net??? GARR +39 nrenum.net e164.arpa, nrenum.net sip, h323 sip, h323 SWITCH +41 e164.arpa e164.arpa, nrenum.net sip, h323, and few others sip, h323 CESNET +420 e164.arpa e164.arpa, nrenum.net sip, h323 sip, h323 SANET +421 e164.arpa e164.arpa, nrenum.net sip sip UNINETT +47 e164.arpa e164.arpa, nrenum.net sip sip
16 Current status Test numbers are available with ENUM: ( test (Echo ( test (Echo ( day (Time of ( test (Echo
17 Call Scenario Communication Server can be a SIP Server, a H.323 Gatekeeper, or any form of Gateway, e.g. VoIP2 , etc.
18 Possible call Scenario H.323 H.323 user dials E.164 number yes Is number in ENUM (e164.arpa)? Call arrives at local Gatekeeper no Is number local? no yes Is number in ENUM (nrenum.net)? no yes Route call to destination accordingly yes Is number in GDS? no Reject call
19 More information / tf-ecs@terena.org
20
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