查看“SIP trunk 配置示例文档”的源代码

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	<h1 id="firstHeading" class="firstHeading">FreeSBC:SIP Trunking</h1>
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<div lang="en" dir="ltr" class="mw-content-ltr"><table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="#SIP_Trunking"><span class="tocnumber">1</span> <span class="toctext">SIP Trunking</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="#Benefits_of_SIP_Trunking"><span class="tocnumber">2</span> <span class="toctext">Benefits of SIP Trunking</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="#Typical_SIP_Trunking_Sample"><span class="tocnumber">3</span> <span class="toctext">Typical SIP Trunking Sample</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="#Features_of_the_FreeSBC"><span class="tocnumber">4</span> <span class="toctext">Features of the FreeSBC</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="#Configuration"><span class="tocnumber">5</span> <span class="toctext">Configuration</span></a></li>
<li class="toclevel-1 tocsection-6"><a href="#References"><span class="tocnumber">6</span> <span class="toctext">References</span></a></li>
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<h2> <span class="mw-headline" id="SIP_Trunking"> SIP Trunking </span></h2>
<p>A SIP Trunk provides the same service you get from a traditional phone lines. The difference is, instead of being a physical wire, a SIP Trunk is a “virtual” line which is provided by a SIP trunk provider delivered over IP using the SIP protocol. 
</p>
<h2> <span class="mw-headline" id="Benefits_of_SIP_Trunking"> Benefits of SIP Trunking </span></h2>
<ul><li> Lower circuit costs
</li><li> Lower PSTN origination/termination fees
</li><li> Better customer service
</li><li> Move offices and keep the same number
</li><li> Flexibility
</li><li> Scalability
</li><li> Reliability
</li></ul>
<p><br />
</p>
<h2> <span class="mw-headline" id="Typical_SIP_Trunking_Sample"> Typical SIP Trunking Sample </span></h2>
<p><a href="/tbwiki/File:FreeSBC_Sip_Trunking.jpg" class="image"><img alt="FreeSBC Sip Trunking.jpg" src="/mediawiki/images/thumb/5/56/FreeSBC_Sip_Trunking.jpg/800px-FreeSBC_Sip_Trunking.jpg" width="800" height="212" /></a>
</p>
<h2> <span class="mw-headline" id="Features_of_the_FreeSBC">  Features of the FreeSBC  </span></h2>
<ul><li>Back-to-back user agent (B2BUA)
</li><li>DOS/DDOS protection, dynamic blacklisting and call access control
</li><li>Easy to deploy, operate and manage through various interfaces including a RESTful API
</li><li>Integrated network troubleshooting tools (traces, media/signaling recording, test call generation, etc)
</li><li>Up to 60,000 simultaneous signaling and media sessions
</li><li>Media transcoding
</li><li>Flexible and extensive routing with SIP headers modification capabilities 
</li><li>Fit to install on virtual machines, clouds, baremetal servers or TelcoBriges' hardware.
</li></ul>
<h2> <span class="mw-headline" id="Configuration"> Configuration </span></h2>
<ul><li><a href="/tbwiki/FreeSBC:SIP_Trunking:Configuration_A" title="FreeSBC:SIP Trunking:Configuration A">SIP Trunking Configuration Instruction</a>
</li><li><a href="/tbwiki/FreeSBC_Configuration_Files:SIP_Trunking" title="FreeSBC Configuration Files:SIP Trunking">SIP Trunking Sample Configuration File</a>
</li></ul>
<h2> <span class="mw-headline" id="References"> References  </span></h2>
<ul><li><a rel="nofollow" class="external text" href="https://sbc.telcobridges.com/#PDF">FreeSBC Datasheet</a>
</li><li><a rel="nofollow" class="external text" href="https://en.wikipedia.org/wiki/SIP_trunking">Wikipedia SIP Trunking</a>
</li></ul>

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