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231 lines
8.1 KiB
HTML
Executable File
231 lines
8.1 KiB
HTML
Executable File
<!DOCTYPE html>
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<html>
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<head>
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<meta charset='utf-8'>
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<meta http-equiv="cache-control" content="no-cache, must-revalidate" >
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<title>EnvayaSMS: Frequently Asked Questions</title>
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<link rel='stylesheet' type='text/css' href='/styles/site.css' />
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</head>
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<body>
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<a href="http://github.com/youngj/EnvayaSMS"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub" /></a>
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<div id="container">
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<a style='float:left' href="/"><img src='/media/icon.png' height='72' width='72' style='margin-right:10px' /></a>
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<h1 style='padding-top:13px'><a href="/">EnvayaSMS</a>
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<span class="small">
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SMS gateway for Android
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</span>
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</h1>
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<div class='menu' style='clear:both;padding-top:5px'>
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<a href='/'>Home</a>
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·
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<a href='/install/'>Install</a>
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·
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<a href='/how/'>How it Works</a>
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·
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<a href='/serverapi/'>API Reference</a>
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·
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<a class='active' href='/faq/'>FAQ</a>
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·
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<a href='/history/'>History</a>
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·
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<a href='/community/'>Community</a>
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</div>
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<h2>Frequently Asked Questions</h2>
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<ul class='faq_links'>
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<li>
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<a href='#q_alternative'>Instead of implementing a SMS gateway as an Android app, why not use X instead? (where X = Twilio, Tropo, Clickatell, FrontlineSMS, RapidSMS, Kannel, etc.)</a>
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</li>
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<li>
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<a href='#q_phones'>What phones are compatible with EnvayaSMS?</a>
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</li>
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<li>
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<a href='#q_servers'>Does EnvayaSMS use envaya.org's servers?</a>
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</li>
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<li>
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<a href='#q_envaya_org'>What is the relationship between EnvayaSMS and envaya.org?</a>
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</li>
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<li>
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<a href='#q_kalsms'>What is the difference between EnvayaSMS and KalSMS?</a>
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</li>
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<li>
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<a href='#q_smssync'>What is the difference between EnvayaSMS and SMSSync?</a>
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</li>
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</ul>
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<h4 id='q_alternative'>
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Instead of implementing a SMS gateway as an Android app, why not use X instead? (where X = Twilio, Tropo, Clickatell, FrontlineSMS, RapidSMS, Kannel, etc.)
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</h4>
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<p>
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The existing alternative methods for creating SMS gateways can generally be categorized as
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hosted services (e.g. Twilio, Tropo, Clickatell), connecting GSM phones/modems to a computer (e.g. FrontlineSMS, RapidSMS, Kannel),
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and partnering directly with mobile operators.
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</p>
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<p>
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The table below summarizes the major benefits and drawbacks of each of these methods for creating an SMS gateway:
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</p>
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<table class='comparison_table'>
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<thead>
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<tr>
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<td> </td>
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<th>Benefits</th>
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<th>Drawbacks</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<th>Hosted services</th>
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<td>
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<ul><li>High message throughput
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<li>Easy to deploy</ul>
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</td>
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<td>
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<ul><li>No local numbers in many countries
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<li>Usually no MMS support</ul>
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</td>
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</tr>
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<tr>
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<th>Connecting modem<br /> to computer</th>
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<td>
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<ul><li>Can work with inexpensive phone</li></ul>
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</td>
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<td>
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<ul><li>Expensive hardware costs
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<li>Lots of moving parts to keep working
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<li>Very difficult for non-technical users to deploy
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<li>Low message throughput
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<li>No MMS support</ul>
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</td>
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</tr>
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<tr>
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<th>Partnering with<br />mobile operators</th>
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<td>
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<ul>
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<li>High message throughput
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<li>Can provide free service to users via shortcode</ul>
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</td>
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<td>
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<ul><li>Usually very expensive
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<li>Requires operator approval
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<li>Long setup time</li></ul>
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</td>
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</tr>
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</tbody>
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</table>
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<p>
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EnvayaSMS is ideal for situations where no hosted services with local numbers are available in
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a particular country, or when it is necessary to receive MMS messages.
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</p>
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<p>
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EnvayaSMS likely has lower throughput than hosted services or partnering with mobile operators, but should
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be able to forward up to a few thousand messages per phone per day.
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</p>
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<h4 id='q_phones'>What phones are compatible with EnvayaSMS?</h4>
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<p>
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EnvayaSMS should work on any phone with Android 1.6 (Donut) or higher. As of 9/23/2011, over 579 different phone models are compatible with EnvayaSMS.
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</p>
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<p>
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EnvayaSMS has been tested and is known to work with the following phones:
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<ul>
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<li>LG GT540 Optimus</li>
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<li>Samsung Galaxy Mini S5570</li>
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</ul>
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<h4 id='q_servers'>Does EnvayaSMS use envaya.org's servers?</h4>
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<p>
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No. When using EnvayaSMS, your phone connects to your own web server.
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The EnvayaSMS Android app does not connect to <a href='http://envaya.org'>envaya.org</a> or any third-party servers.
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In particular, you do not need to register for <a href='http://envaya.org'>envaya.org</a>.
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</p>
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<p>
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For information about configuring a web server to connect to EnvayaSMS, see the <a href='serverapi.html'>API Reference</a> page.
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</p>
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<h4 id='q_envaya_org'>What is the relationship between EnvayaSMS and envaya.org?</h4>
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<p>
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We originally developed EnvayaSMS to enable civil society organizations in East Africa to interact with
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<a href='http://envaya.org'>envaya.org</a> via SMS and MMS, such as by posting news updates and photos
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to their website.
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</p>
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<p>
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We realized that EnvayaSMS would be useful for any web service that needs to send and receive SMS/MMS,
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and decided to make EnvayaSMS available for anyone building their own applications.
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</p>
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<p>
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Development of EnvayaSMS is currently led by the <a href='http://envaya.org'>envaya.org</a> team,
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but anyone is welcome to contribute to improve it.
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</p>
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<h4 id='q_kalsms'>What is the difference between EnvayaSMS and KalSMS?</h4>
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<p>
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The source code for EnvayaSMS was originally based on <a href='https://github.com/niryariv/kalsms/'>KalSMS</a>, an open-source project
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started by Nir Yariv in 2010. KalSMS first introduced the idea of a simple SMS gateway implemented entirely as an Android app.
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EnvayaSMS is a major rewrite that shares a small amount of code with KalSMS.
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</p>
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<p>
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EnvayaSMS builds upon the idea of KalSMS by adding many new features that are necessary when deploying an SMS gateway in the field,
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such as sending more than 100 messages per hour, authenticating the phone to the server, and retrying forwarding messages after transient errors.
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For a complete list of changes, see the <a href='/history/'>History</a> page.
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</p>
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<p>
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EnvayaSMS's server API is incompatible with that of KalSMS. Anyone switching from KalSMS to EnvayaSMS must
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update their server to use the new API described on the <a href='/serverapi/'>API Reference</a> page.
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</p>
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<p>
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As of 2011, KalSMS is no longer actively developed, and new development will occur on the EnvayaSMS project.
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</p>
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<h4 id='q_smssync'>What is the difference between EnvayaSMS and SMSSync?</h4>
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<p>
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<a href='http://smssync.ushahidi.com/'>SMSSync SMS Gateway</a> is an alternative Android SMS gateway app developed by Ushahidi.
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</p>
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<p>
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EnvayaSMS contains several features not present in the current version of SMSSync, such as receiving MMS messages,
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sending more than 100 outgoing SMS messages per hour, notifying the server of the status of outgoing messages,
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and showing log messages to facilitate troubleshooting.
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</p>
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<div class="footer">
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get the source code on GitHub : <a href="http://github.com/youngj/EnvayaSMS">youngj/EnvayaSMS</a>
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</div>
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