opensips/modules/enum/doc/enum_admin.xml

changeset 13
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73 <para> 73 <para>
74 Enum query returns 1 if the current Request URI was replaced 74 Enum query returns 1 if the current Request URI was replaced
75 and -1 if not. 75 and -1 if not.
76 </para> 76 </para>
77 <para> 77 <para>
78 In addition to standard ENUM, support for ISN (ITAD Subscriber
79 Numbers) is provided as well. To allow ISN lookups to resolve,
80 a different formatting algorithm is expected by the DNS server.
81 Whereas a ENUM NAPTR record expects a DNS query of the form
82 9.8.7.6.5.4.3.2.1.<suffix>, ISN method expects a DNS query of
83 the form 6.5.1212.<suffix>. That is, a valid ISN number includes
84 a prefix of '56' in the example. The rest of the number is a
85 ITAD (Internet Telephony Administrative Domain) as defined
86 in RFCs 3872 and 2871, and as allocated by the IANA in
87 http://www.iana.org/assignments/trip-parameters. The ITAD is
88 left intact and not refersed as ENUM requires. To learn more
89 about ISN please refer to documents at www.freenum.org.
90 </para>
91 <para>
92 To complete a ISN lookup on the user part of the Request-URI,
93 isn_query() is used instead of enum_query().
94 </para>
95 <para>
78 Enum module also implements is_from_user_enum function. 96 Enum module also implements is_from_user_enum function.
79 This function does an enum lookup on the from user and 97 This function does an enum lookup on the from user and
80 returns true if found, false otherwise. 98 returns true if found, false otherwise.
81 </para> 99 </para>
82 </section> 100 </section>
151 modparam("enum", "i_enum_suffix", "e1234.arpa.") 169 modparam("enum", "i_enum_suffix", "e1234.arpa.")
152 </programlisting> 170 </programlisting>
153 </example> 171 </example>
154 </section> 172 </section>
155 <section> 173 <section>
174 <title><varname>isn_suffix</varname> (string)</title>
175 <para>
176 The domain suffix to be used for isn_query() lookups. Can
177 be overridden by a parameter to isn_query.
178 </para>
179 <para>
180 Default value is <quote>freenum.org.</quote>
181 </para>
182 <example>
183 <title>Setting isn_suffix module parameter</title>
184 <programlisting format="linespecific">
185 modparam("enum", "isn_suffix", "freenum.org.")
186 </programlisting>
187 </example>
188 </section>
189 <section>
156 <title><varname>branchlabel</varname> (string)</title> 190 <title><varname>branchlabel</varname> (string)</title>
157 <para> 191 <para>
158 This parameter determines which label i_enum_query() will use 192 This parameter determines which label i_enum_query() will use
159 to branch off to the infrastructure ENUM tree. 193 to branch off to the infrastructure ENUM tree.
160 </para> 194 </para>
161 <para> 195 <para>
162 Default value is <quote>"i"</quote> 196 Default value is <quote>"i"</quote>
163 </para> 197 </para>
164 <example> 198 <example>
165 <title>Setting brachlabel module parameter</title> 199 <title>Setting branchlabel module parameter</title>
166 <programlisting format="linespecific"> 200 <programlisting format="linespecific">
167 modparam("enum", "branchlabel", "i") 201 modparam("enum", "branchlabel", "i")
168 </programlisting> 202 </programlisting>
169 </example> 203 </example>
170 </section> 204 </section>
351 for the rationale behind this function. 385 for the rationale behind this function.
352 </para> 386 </para>
353 </section> 387 </section>
354 388
355 <section> 389 <section>
390 <title>
391 <function moreinfo="none">isn_query(["suffix"[,"service"]])</function>
392 </title>
393 <para>
394 The function performs a ISN query and rewrites the Request-URI with
395 the result of the query. See <xref linkend="sec-overview"/> for more
396 information.
397 </para>
398 <para>Meaning of the parameters is as follows:</para>
399 <itemizedlist>
400 <listitem>
401 <para><emphasis>suffix</emphasis> - Suffix to be appended to the
402 domain name.
403 </para>
404 </listitem>
405 <listitem>
406 <para><emphasis>service</emphasis> - Service string to be used in
407 the service field.
408 </para>
409 </listitem>
410 </itemizedlist>
411 <para>
412 This function can be used from REQUEST_ROUTE.
413 </para>
414 <para>
415 See ftp://www.ietf.org/rfc/rfc3872.txt and
416 ftp://www.ietf.org/rfc/rfc2871.txt for information
417 regarding the ITAD part of the ISN string.
418 </para>
419 <example>
420 <title><function moreinfo="none">isn_query</function> usage</title>
421 <programlisting format="linespecific">
422 ...
423 # search for "e2u+sip" in freenum.org
424 isn_query("freenum.org.");
425 ...
426 # search for "e2u+sip" in default tree (configured as parameter)
427 isn_query();
428 ...
429 # search for "e2u+voice:sip" in freenum.org
430 isn_query("freenum.org.","voice");
431 ...
432 </programlisting>
433 </example>
434 </section>
435
436 <section>
356 <title><function moreinfo="none">is_from_user_enum()</function></title> 437 <title><function moreinfo="none">is_from_user_enum()</function></title>
357 <para> 438 <para>
358 Checks if the user part of from <abbrev>URI</abbrev> 439 Checks if the user part of from <abbrev>URI</abbrev>
359 is found in an enum lookup. 440 is found in an enum lookup.
360 Returns 1 if yes and -1 if not. 441 Returns 1 if yes and -1 if not.

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