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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<document>
3
4  <properties>
5    <author email="general.AT.jakarta.DOT.apache.DOT.org">.tel Developer Community</author>
6    <title>Record Types</title>
7  </properties>
8
9<body>
10
11<section name="Record Types">
12
13<p>Compared to traditional top-level domains,
14the .tel DNS uses a different set of record types. User-specified Address
15and CNAME records are prohibited, and the following are allowed:</p>
16<ul>
17<li>TXT - text record for storing keywords and other freeform text </li>
18<li>LOC - location records containing latitude, longitude and altitude data</li>
19<li>NAPTR (Naming Authority Pointer Record) - a record holding a URL
20and an Enumservice that indicates the type of URL information, such as email or phone number; NAPTRs can
21be
22        <ul>
23                <li>Terminal - holding contact information, such as phone number, Skype ID, etc.</li>
24                <li>Non-terminal - holding a pointer to another domain or subdomain, which may hold more data</li>
25        </ul> 
26        </li>
27</ul>
28        <p>NAPTR records are powerful resource records with a number of important advantages,
29        such as small package size, high-speed propagation and real-time updating. NAPTR keys
30         can support any Enumservice type, including <code>voice:tel</code> or <code>im:x-skype</code>
31          or a pointer to a subdomain or another domain. In addition, NAPTR records can be ordered
32          and labeled.
33          However, support for NAPTRs is not yet common
34         and requires extra effort; to make working with .tel domains easy,
35         the TelHosting Software already provides this support.  </p>
36         <p>The <a href="http://en.wikipedia.org/wiki/NAPTR" target="_blank">Wikipedia</a>
37          gives a more detailed description of NAPTRs, and <a href="http://www.ietf.org/rfc/rfc3403.txt" target="_blank">RFC3403
38         </a> contains the specification of this resource record. For more information on
39         NAPTR usage in .tel, please read the whitepaper <a href="/docs/naptr.pdf">
40         NAPTR Records in .tel</a>.</p>
41
42
43
44
45</section>
46
47</body>
48</document>
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