VoIP Numbering Plan Vs. Domain names. IPNP

Do you happen to have the URL address for IETF ?

	* A user calling from a "net phone" would use a host name in the
	  form 7.9.3.3.6.2.9.3.2.7.9.tpc.int to call the phone number
  +972-3-9263397  belonging to a "regular" PSTN (i.e. domain name is

The manner that you are suggesting will be hard to use for the end user.
Which will prefer to enter the DN and let the system’s network management to
the resolving work. It might be the case for the universal IPNP system to
behave in the manner that you are describing, but the end user still need a
simplified way to enter the DN.

----------------------------------------
Eng. Nimrod  Vered , B.Sc. E.E.E.   
VoIP Project Manager 
========================
Tadiran Telecommunication
Business and Access Division 
Tel/Fax : 972-3-9263397 
E-Mail    :nim at tadirantele.com
----------------------------------------
" Reality Starts With A Dream... ! "


	-----Original Message-----
	From:	Berislav Todorovic [SMTP:BERI at etf.bg.ac.yu]
	Sent:	ה אפריל 23 1998 16:22
	To:	nim at tadirantele.com
	Cc:	dns-wg at ripe.net
	Subject:	Re: VoIP Numbering Plan Vs. Domain names. IPNP

	>> Date: Thu, 23 Apr 1998 13:07:42 +0200
	>> From: Vered Nimrod <nim at tadirantele.com>
	>> Subject: VoIP Numbering Plan Vs. Domain names. IPNP
	>> 
	>> Is there any work being done on the above subject ?

	IETF has a working group dealing with IP Telephony, but I'm not sure
	whether they are dealing with the mentioned problem, or not.

	>> There is a need for a universal IPNP (IP Numbering Plan) system.
So
	>> that every equipment that will be connected to the Internet will
	>> have a unique DN (Directory Number).

	The solution should rather be sought in the domain name system. And
	there is already a possible solution to the problem, outlined in the
	RFC 1530 (Principles of Operation of the TPC.INT Subdomain). This
	is, of course, my personal view of the matter and just one more idea
	on the solution to the problem.

	* A user calling from a "net phone" would use a host name in the
	  form 7.9.3.3.6.2.9.3.2.7.9.tpc.int to call the phone number
	  +972-3-9263397  belonging to a "regular" PSTN (i.e. domain name is
	  the reversed phone number, much like IN-ADDR.ARPA system). In the
	  DNS, there should be an "MX" record pointing to the PSTN/Internet
	  gateway, e.g.:

	  *.*.*.*.*.*.3.2.7.9.tpc.int.   IN   MX   10   pstn-gw.domain.com.

	  The client application should consult the MX records, find out the
	  name of the gateway and then connect to the gateway - the same way
	  mail clients do.

	* A user calling from a PSTN should probably use an access code to
	  reach a local PSTN/Internet gateway - which is exactly the way
	  you described. That access code should be assigned by a national
	  telecom authority.

	Best regards,
	Beri

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