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<html lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta charset="UTF-8"><meta name="copyright" content="(C) Copyright 2023"><meta name="DC.rights.owner" content="(C) Copyright 2023"><meta name="DC.type" content="reference"><meta name="prodname" content="For Sentinel units"><meta name="version" content="DGW 49.0.2809"><meta name="platform" content="Sentinel"><meta name="DC.date.modified" content="2023-03-28"><meta name="DC.date.issued" content="2023-03-28"><meta name="DC.date.available" content="2023-03-28"><meta name="ChapterNumbering" content="no"><meta name="DC.format" content="HTML5"><meta name="DC.identifier" content="reference_o3x_5cp_k5"><link href="https://fonts.googleapis.com/css?family=Open+Sans" rel="stylesheet"><link rel="stylesheet" type="text/css" href="https://documentation.media5corp.com/download/attachments/75010953/commonltr.css"><link rel="stylesheet" type="text/css" href="https://documentation.media5corp.com/download/attachments/75010953/custom.css"><title>Configuring the Sentinel SBC for PSTN Survivability</title></head><body><header role="banner"><div class="topicmeta title">Configuring the Sentinel SBC for PSTN Survivability </div><div class="topicmeta date">2023-03-28</div><div class="topicmeta product">For Sentinel units</div><div class="topicmeta version">DGW 49.0.2809</div><div class="topicmeta pdf"><a href="https://documentation.media5corp.com/download/attachments/75010953/Configuring%20the%20Sentinel%20SBC%20for%20PSTN%20Survivability.pdf" rel="nofollow">Download PDF Document</a></div><hr><span style="float: inline-end;"></span></header><nav role="toc"><ul><li><a href="#reference_o3x_5cp_k5">Information to Know Before Starting </a></li><li><a href="#topic_title_Basic_Concepts_d1e16">Basic Concepts</a><ul><li><a href="#concept_vst_1fr_gq">PSTN Survivability </a></li><li><a href="#concept_d5c_qls_y3b">Hunt1 Default Group </a></li></ul></li><li><a href="#topic_title_Basic_Configuration_Steps_d1e19">Basic Configuration Steps</a><ul><li><a href="#task_ass_11g_hq">Configuring Black Listing in the wan_ip_trunk_ca Call Agent </a></li><li><a href="#task_zdg_vlx_bq">Associating Routing Rulesets to Your Configuration</a></li><li><a href="#task_pk4_lns_y3b">Changing Port Priority of the Hunt1 Group</a></li></ul></li><li><a href="#concept_v4k_q3h_1r">DGW Documentation</a></li><li><a href="#concept_fqm_rv4_k4">Copyright Notice</a></li></ul></nav><main role="main"><article role="article" aria-labelledby="ariaid-title1"><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="nested0" aria-labelledby="ariaid-title1" id="reference_o3x_5cp_k5">
<h1 class="title topictitle1" id="ariaid-title1">Information to Know Before Starting </h1>
<div class="body refbody">
<section class="section">This Technical Bulletin is based on the <a class="xref" href="https://documentation.media5corp.com/display/DGWLATEST/SBC+SIP+Trunking+Configuration+-+Sentinel+in+the+LAN" target="_blank">SBC SIP Trunking Configuration - Sentinel in the LAN</a>
Configuration Note published on the Media5 documentation portal at
https://documentation.media5corp.com and is planned to be used as a supplementary guide.
Please make sure that you have followed all the steps described in the <a class="xref" href="https://documentation.media5corp.com/display/DGWLATEST/SBC+SIP+Trunking+Configuration+-+Sentinel+in+the+LAN" target="_blank">SBC SIP Trunking Configuration - Sentinel in the LAN</a>,
before following this guide.</section>
</div>
</article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic nested0 nobody" aria-labelledby="ariaid-title2" id="topic_title_Basic_Concepts_d1e16">
<h1 class="title topictitle1" id="ariaid-title2">Basic Concepts</h1>
<article class="topic concept nested1" aria-labelledby="ariaid-title3" id="concept_vst_1fr_gq">
<h2 class="title topictitle2" id="ariaid-title3">PSTN Survivability </h2>
<div class="body conbody">
<p class="p">This scenario describes how to configure a Sentinel SBC, so that calls fail over to the PSTN
line when the SIP service provider is unreachable.</p>
<div class="p">
<ul class="ul" id="concept_vst_1fr_gq__ul_y2f_zsv_dq">
<li class="li">The Sentinel unit is located in the LAN, behind a Near-End NAT</li>
<li class="li">Only port ETH1 is used</li>
<li class="li">The Sentinel unit is set as a Demarcation point.</li>
<li class="li">The Sentinel unit may or may not register to SIP service provider.</li>
<li class="li">When the SIP Provider gets unreachable, calls go through the PSTN port of the
Sentinel.</li>
</ul>
</div>
<div class="p">
<br><img class="image" id="concept_vst_1fr_gq__image_xkp_tnr_vkb" src="https://documentation.media5corp.com/download/attachments/75010953/SbcPSTNSurvivability.png" width="800"><br>
</div>
</div>
</article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic concept nested1" aria-labelledby="ariaid-title4" id="concept_d5c_qls_y3b">
<h2 class="title topictitle2" id="ariaid-title4">Hunt1 Default Group </h2>
<div class="body conbody"><p class="shortdesc">By default, when the main SIP Trunk is down, calls will be routed to a hunt group of
PSTN interfaces. This hunt group is called “Hunt1” and is factory installed.</p>
<p class="p">The Hunt1 group is consisted of the following telephony ports:</p>
<div class="p">
<table class="table frame-all" id="concept_d5c_qls_y3b__table_jqp_yls_y3b"><caption></caption><colgroup><col style="width:20%"><col style="width:20%"><col style="width:20%"><col style="width:20%"><col style="width:20%"></colgroup><tbody class="tbody">
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot1/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot2/FXO1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot4/FXO1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot6/FXO1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot8/FXO1</td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot2/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot2/FXO2</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot4/FXO2</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot6/FXO2</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot8/FXO2</td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot3/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot2/FXO3</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot4/FXO3</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot6/FXO3</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot8/FXO3</td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot4/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot2/FXO4</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot4/FXO4</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot6/FXO4</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot8/FXO4</td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot5/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot3/FXO1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot5/FXO1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot7/FXO1</td>
<td class="entry colsep-1 rowsep-1"></td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot6/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot3/FXO2</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot5/FXO2</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot7/FXO2</td>
<td class="entry colsep-1 rowsep-1"></td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot7/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot3/FXO3</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot5/FXO3</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot7/FXO3</td>
<td class="entry colsep-1 rowsep-1"></td>
</tr>
<tr class="row">
<td class="entry colsep-1 rowsep-1">isdn-Slot8/E1T1</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot3/FXO4</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot5/FXO4</td>
<td class="entry colsep-1 rowsep-1">fxo-Slot7/FXO4</td>
<td class="entry colsep-1 rowsep-1"></td>
</tr>
</tbody></table>
</div>
<p class="p">To change the priority of the ports that will be used by the Sentinel on a SIP Server failure,
please refer to: <a class="xref" href="#task_pk4_lns_y3b">Changing Port Priority of the Hunt1 Group</a>.</p>
</div>
</article></article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic nested0 nobody" aria-labelledby="ariaid-title5" id="topic_title_Basic_Configuration_Steps_d1e19">
<h1 class="title topictitle1" id="ariaid-title5">Basic Configuration Steps</h1>
<article class="topic task nested1" aria-labelledby="ariaid-title6" id="task_ass_11g_hq">
<h2 class="title topictitle2" id="ariaid-title6">Configuring Black Listing in the <span class="keyword wintitle">wan_ip_trunk_ca</span> Call Agent </h2>
<div class="body taskbody">
<section class="section context"><div class="tasklabel"><strong class="sectiontitle tasklabel">Context</strong></div><span class="ph">If you are not familiar with the meaning of the fields and
buttons, click <span class="keyword wintitle">Show Help</span>, located at the upper right corner of
the Web page. When activated, the fields and buttons that offer online help will
change to green and if you hover over them, the description will bedisplayed.</span></section>
<section id="task_ass_11g_hq__steps_k1k_fbx_gq"><div class="tasklabel"><strong class="sectiontitle tasklabel">Steps</strong></div><ol class="ol steps" id="task_ass_11g_hq__steps_k1k_fbx_gq"><li class="li step">
<span class="ph cmd">Go to <span class="keyword wintitle">SBC</span>/<span class="keyword wintitle">Configuration</span>.</span>
</li><li class="li step">
<span class="ph cmd">In the <span class="keyword wintitle">Call Agent Configuration</span>
table, click <img class="image" id="task_ass_11g_hq__image_kfn_5vq_lq" src="https://documentation.media5corp.com/download/attachments/75010953/pencilbleu.jpg" width="15"> next to <span class="keyword wintitle">wan_ip_trunk_ca</span>.</span>
</li><li class="li step">
<span class="ph cmd">In the <span class="keyword wintitle">Configure Call Agent</span> table,
set the <span class="keyword wintitle">Keep-Alive Interval</span> field to
30.</span>
</li><li class="li step">
<span class="ph cmd">Set the <span class="keyword wintitle">Blacklisting Duration</span> to
60.</span>
</li><li class="li step">
<span class="ph cmd">In the <span class="keyword wintitle">Blacklisting Error Codes</span>
field, enter the SIP codes (comma-separated) that will make the Sentinel mark
the SIP server as unreachable.</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Save</span>.</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Apply</span> to apply
all changes to the configuration.</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Apply</span> to apply
all changes to the configuration.</span>
</li></ol></section>
<section class="section result"><div class="tasklabel"><strong class="sectiontitle tasklabel">Result</strong></div>At the top of the screen, <span class="keyword wintitle">No</span> will be displayed in the <span class="keyword wintitle">Config.Modified</span> field, indicating
that the configuration that was modified is now applied to the system. When the
Mediatrix SBC will use the selected Call Agent for a communication, the selected
parameters will be applied. <br><img class="image" id="task_ass_11g_hq__image_qyx_bxc_r2b" src="https://documentation.media5corp.com/download/attachments/75010953/ConfiguraCallAgent_Wan_Ip_Trunk_ca_PSTN.png" width="800"><br></section>
</div>
<nav role="navigation" class="related-links"><div class="linklist relinfo reltasks"><div class="linklistlabel"><strong class="sectiontitle linklistlabel">Next Step</strong></div><ul class="linklist"><li class="linklist"><a class="link" href="#task_zdg_vlx_bq">Associating Routing Rulesets to Your Configuration</a></li></ul></div></nav></article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic task nested1" aria-labelledby="ariaid-title7" id="task_zdg_vlx_bq">
<h2 class="title topictitle2" id="ariaid-title7">Associating Routing Rulesets to Your Configuration</h2>
<div class="body taskbody">
<section><div class="tasklabel"><strong class="sectiontitle tasklabel">Steps</strong></div><ol class="ol steps"><li class="li step">
<span class="ph cmd">Go to <span class="keyword wintitle">SBC</span>/<span class="keyword wintitle">Configuration</span></span>
</li><li class="li step" id="task_zdg_vlx_bq__Step2">
<span class="ph cmd">In the <span class="keyword wintitle">Routing Rulesets</span> table, from the <span class="keyword wintitle">Name</span> selection list, select<span class="keyword wintitle">
lan_pbx_to_wan_ip_trunk_failover_to_trunk_dm</span>.</span>
</li><li class="li step">
<span class="ph cmd">Click <img class="image" id="task_zdg_vlx_bq__image_h1y_glx_q2b" src="https://documentation.media5corp.com/download/attachments/75010953/Plusbleu.jpg" width="15">.</span>
</li><li class="li step">
<span class="ph cmd">From the <span class="keyword wintitle">Name</span>
selection list, select <span class="keyword wintitle"> trunk_lines_to_local_pbx_dm </span>.</span>
</li><li class="li step">
<span class="ph cmd">Remove the lan_pbx_to_wan_ip_trunk_dm routing ruleset, by clicking <img class="image" id="task_zdg_vlx_bq__image_o3j_1rr_vkb" src="https://documentation.media5corp.com/download/attachments/75010953/minus.jpg" width="13"> next to it</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Save</span>.</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Apply</span> to apply
all changes to the configuration.</span>
</li></ol></section>
<section class="section result"><div class="tasklabel"><strong class="sectiontitle tasklabel">Result</strong></div>
<br><img class="image" id="task_zdg_vlx_bq__image_uff_p1d_r2b" src="https://documentation.media5corp.com/download/attachments/75010953/AssoiatingRoutingRulesetstoyourConfiguration_PSTN.png" width="800"><br>
<p class="p"> </p>
</section>
</div>
<nav role="navigation" class="related-links"><div class="linklist relinfo reltasks"><div class="linklistlabel"><strong class="sectiontitle linklistlabel">Next Step</strong></div><ul class="linklist"><li class="linklist"><a class="link" href="#task_pk4_lns_y3b">Changing Port Priority of the Hunt1 Group</a></li></ul></div></nav></article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic task nested1" aria-labelledby="ariaid-title8" id="task_pk4_lns_y3b">
<h2 class="title topictitle2" id="ariaid-title8">Changing Port Priority of the Hunt1 Group</h2>
<div class="body taskbody">
<section class="section context"><div class="tasklabel"><strong class="sectiontitle tasklabel">Context</strong></div>This step is optional. Once the, <a class="xref" href="#task_ass_11g_hq">Configuring Black Listing in the wan_ip_trunk_ca Call Agent</a> and<a class="xref" href="#task_zdg_vlx_bq">Associating Routing Rulesets to Your Configuration</a> are
completed, when the main SIP Trunk is down, calls will be routed to a hunt group of PSTN
interfaces. This hunt group is called <span class="keyword wintitle">Hunt1</span> and is factory installed. For
more details, refer to the <a class="xref" href="#concept_d5c_qls_y3b" title="By default, when the main SIP Trunk is down, calls will be routed to a hunt group of PSTN interfaces. This hunt group is called “Hunt1” and is factory installed.">Hunt1 Default Group</a>
section.</section>
<section id="task_pk4_lns_y3b__steps_gy1_qns_y3b"><div class="tasklabel"><strong class="sectiontitle tasklabel">Steps</strong></div><ol class="ol steps" id="task_pk4_lns_y3b__steps_gy1_qns_y3b"><li class="li step">
<span class="ph cmd">Go to <span class="keyword wintitle">Call Router</span>/<span class="keyword wintitle">Route Config</span>.</span>
</li><li class="li step">
<span class="ph cmd">In the <span class="keyword wintitle">Hunt</span> table,
click <img class="image" id="task_pk4_lns_y3b__image_dhr_f4s_y3b" src="https://documentation.media5corp.com/download/attachments/75010953/pencilbleu.jpg" width="15"> located next to <span class="keyword wintitle">Hunt1</span>.</span>
</li><li class="li step">
<span class="ph cmd">In the <span class="keyword wintitle">Configure Hunt 1</span>
table, in the <span class="keyword wintitle">Destinations</span> field, change
the order of the PSTN ports that will be used when the SIP server is down.</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Save</span>
</span>
</li><li class="li step">
<span class="ph cmd">Click <span class="keyword wintitle">Save</span>
again.</span>
</li></ol></section>
<section class="section result"><div class="tasklabel"><strong class="sectiontitle tasklabel">Result</strong></div>When the SIP provider cannot be reached, calls will be routed to the Sentinel PSTN
ports with the order defined in the <span class="keyword wintitle">Hunt1</span> hunt group. <br><img class="image" id="task_pk4_lns_y3b__image_qwp_tps_y3b" src="https://documentation.media5corp.com/download/attachments/75010953/Hunt_Hunt1_reorderports.png" width="800"><br></section>
</div>
</article></article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic concept nested0" aria-labelledby="ariaid-title9" id="concept_v4k_q3h_1r">
<h1 class="title topictitle1" id="ariaid-title9">DGW Documentation</h1>
<div class="body conbody"><p class="shortdesc">Mediatrix devices are supplied with an exhaustive set of documentation. </p>
<p class="p">Mediatrix user documentation is available on the <a class="xref" href="http://documentation.media5corp.com" target="_blank">Media5 Documentation
Portal</a>.</p>
<div class="p">Several types of documents were created to clearly present the information you are looking for.
Our documentation includes:<ul class="ul" id="concept_v4k_q3h_1r__ul_bqy_cjh_1r">
<li class="li"><strong class="ph b">Release notes</strong>: Generated at each GA release, this document includes the known and
solved issues of the software. It also outlines the changes and the new features the release
includes.</li>
<li class="li"><strong class="ph b">Configuration notes</strong>: These documents are created to facilitate the configuration of a
specific use case. They address a configuration aspect we consider that most users will need to
perform. However, in some cases, a configuration note is created after receiving a question
from a customer. They provide standard step-by-step procedures detailing the values of the
parameters to use. They provide a means of validation and present some conceptual information.
The configuration notes are specifically created to guide the user through an aspect of the
configuration. </li>
<li class="li"><strong class="ph b">Technical bulletins</strong>: These documents are created to facilitate the configuration of a
specific technical action, such as performing a firmware upgrade.</li>
<li class="li"><strong class="ph b">Hardware installation guide</strong>: They provide the detailed procedure on how to safely and
adequately install the unit. It provides information on card installation, cable connections,
and how to access for the first time the Management interface.</li>
<li class="li"><strong class="ph b">User guide</strong>: The user guide explains how to customise to your needs the configuration
of the unit. Although this document is task oriented, it provides conceptual information to
help the user understand the purpose and impact of each task. The User Guide will provide
information such as where and how TR-069 can be configured in the Management Interface, how to
set firewalls, or how to use the CLI to configure parameters that are not available in the
Management Interface.</li>
<li class="li"><strong class="ph b">Reference guide</strong>: This exhaustive document has been created for advanced users. It
includes a description of all the parameters used by all the services of the Mediatrix units.
You will find, for example, scripts to configure a specific parameter, notification messages
sent by a service, or an action description used to create Rulesets. This document includes
reference information such as a dictionary, and it does not include any step-by-step
procedures. </li>
</ul></div>
</div>
</article><hr><span style="float: inline-end;"><a href="#">Top</a></span><article class="topic concept nested0" aria-labelledby="ariaid-title10" id="concept_fqm_rv4_k4">
<h1 class="title topictitle1" id="ariaid-title10">Copyright Notice</h1>
<div class="body conbody"><p class="shortdesc">Copyright © 2022 Media5 Corporation.</p>
<p class="p">This document contains information that is proprietary to Media5 Corporation.</p>
<p class="p">Media5 Corporation reserves all rights to this document as well as to the Intellectual Property
of the document and the technology and know-how that it includes and represents.</p>
<p class="p">This publication cannot be reproduced, neither in whole nor in part, in any form whatsoever,
without written prior approval by Media5 Corporation.</p>
<p class="p">Media5 Corporation reserves the right to revise this publication and make changes at any time
and without the obligation to notify any person and/or entity of such revisions and/or
changes.</p>
</div>
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