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ICANN to Hold Open Teleconference on Registration Restrictions Dispute Resolution Procedure (RRDRP)

ICANN will convene an open teleconference on 13 April 2011. The Registries Stakeholder Group (RySG) requested this call to discuss issues relating to the current draft of the RRDRP. The latest comments from the RySG on the RRDRP were submitted on 7 December 2010 (see and subsequent to that the RySG submitted a redline of the RRDRP that is viewable here [PDF, 172 KB].

Results of the call:

The substance discussed during this call is intended to inform the finalization of the RRDRP. All comments will be considered and, if appropriate, revisions may be made to the RRDRP, which will be posted with the Applicant Guidebook.


The meeting will be held via teleconference on 13 April 2011 at 19:00 UTC (, and is scheduled to last for 60 minutes.


If you would like to participate, please submit your name to, and you will be provided with information for the call.


    Domain Name System
    Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"". An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese. Many languages also use other types of digits than the European ""0-9"". The basic Latin alphabet together with the European-Arabic digits are, for the purpose of domain names, termed ""ASCII characters"" (ASCII = American Standard Code for Information Interchange). These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs. The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-"". The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS. The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" (separated by ""dots""). The ASCII form of an IDN label is termed an ""A-label"". All operations defined in the DNS protocol use A-labels exclusively. The Unicode form, which a user expects to be displayed, is termed a ""U-label"". The difference may be illustrated with the Hindi word for ""test"" — परीका — appearing here as a U-label would (in the Devanagari script). A special form of ""ASCII compatible encoding"" (abbreviated ACE) is applied to this to produce the corresponding A-label: xn--11b5bs1di. A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"". Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as"""" is not an IDN."