<html>
<head>
<meta name="viewport" content="width=device-width" />
<base href="https://wiki.asterisk.org/wiki" />
<style type="text/css">
body, #email-content, #email-content-inner { font-family: Arial,FreeSans,Helvetica,sans-serif; }
body, p, blockquote, pre, code, td, th, li, dt, dd { font-size: 13px; }
small { font-size: 11px; }
body { width:100% !important; -webkit-font-smoothing: antialiased; }
body,
#email-wrapper { background-color: #f0f0f0; }
#email-wrapper-inner { padding: 20px; text-align: center; }
#email-content-inner { background-color: #fff; border: 1px solid #bbb; color: $menuTxtColour; padding:20px; text-align:left; }
#email-wrapper-inner > table { width: 100%; }
#email-wrapper-inner.thin > table { margin: 0 auto; width: 50%; }
#email-footer { padding: 0 16px 32px 16px; margin: 0; }
.email-indent { margin: 8px 0 16px 0; }
.email-comment { margin: 0 0 0 56px; }
.email-comment.removed { background-color: #ffe7e7; border: 1px solid #df9898; padding: 0 8px;}
#email-title-avatar { text-align: left; vertical-align: top; width: 48px; padding-right: 8px; }
#email-title-flavor { margin: 0; padding: 0 0 4px 0; }
#email-title-heading { font-size: 16px; line-height: 20px; min-height: 20px; margin: 0; padding: 0; }
#email-title .icon { border: 0; padding: 0 5px 0 0; text-align: left; vertical-align: middle; }
#email-actions { border-top: 1px solid #bbb; color: #505050; margin: 8px 0 0 0; padding: 0; }
#email-actions td { padding-top: 8px; }
#email-actions .left { max-width: 45%; text-align: left; }
#email-actions .right { text-align: right; }
.email-reply-divider { border-top: 1px solid #bbb; color: #505050; margin: 32px 0 8px 0; padding: 8px 0; }
.email-section-title { border-bottom: 1px solid #bbb; margin: 8px 0; padding: 8px 0 0 0; }
.email-metadata { color: #505050; }
a { color: #326ca6; text-decoration: none; }
a:hover { color: #336ca6; text-decoration: underline; }
a:active {color: #326ca6; }
a.email-footer-link { color: #505050; font-size: 11px; }
.email-item-list { list-style: none; margin: 4px 0; padding-left: 0; }
.email-item-list li { list-style: none; margin: 0; padding: 4px 0; }
.email-list-divider { color: #505050; padding: 0 0.35em; }
.email-operation-icon { padding-right: 5px; }
.avatar { -ms-interpolation-mode: bicubic; border-radius: 3px;}
.avatar-link { margin: 2px; }
.tableview th { border-bottom: 1px solid #69C; font-weight: bold; text-align: left; }
.tableview td { border-bottom: 1px solid #bbbbbb; text-align: left; padding: 4px 16px 4px 0; }
.aui-message { margin: 1em 0; padding: 8px; }
.aui-message.info { background-color: #e0f0ff; border: 1px solid #9eb6d4; }
.aui-message.success { background-color: #ddfade; border: 1px solid #93c49f; }
.aui-message.error,
.aui-message.removed { background-color: #ffe7e7; border: 1px solid #df9898; color: #000; }
.call-to-action-table { margin: 10px 1px 1px 1px;}
.call-to-cancel-container, .call-to-action-container { padding: 5px 20px; }
.call-to-cancel-container { border: 1px solid #aaa; background-color: #eee; border-radius: 3px; }
.call-to-cancel-container a.call-to-cancel-button { background-color: #eee; font-size: 14px; line-height: 1; padding: 0; margin: 0; color: #666; font-family: sans-serif;}
.call-to-action-container { border: 1px solid #486582; background-color: #3068A2; border-radius: 3px; padding: 4px 10px; }
.call-to-action-container a.call-to-action-button { background-color: #3068A2; font-size: 14px; line-height: 1; padding: 0; margin: 0; color: #fff; font-weight: bold; font-family: sans-serif; }
/** The span around the inline task checkbox image */
.diff-inline-task-overlay {
display: inline-block;
text-align: center;
height: 1.5em;
padding: 5px 0px 1px 5px;
margin-right: 5px;
/** Unfortunately, the negative margin-left is stripped out in gmail */
margin-left: -5px;
}
@media handheld, only screen and (max-device-width: 480px) {
div, a, p, td, th, li, dt, dd { -webkit-text-size-adjust: auto; }
small, small a { -webkit-text-size-adjust: 90%; }
td[id=email-wrapper-inner] { padding: 2px !important; }
td[id=email-content-inner] { padding: 8px !important; }
td[id="email-wrapper-inner"][class="thin"] > table { text-align: left !important; width: 100% !important; }
td[id=email-footer] { padding: 8px 12px !important; }
div[class=email-indent] { margin: 8px 0px !important; }
div[class=email-comment] { margin: 0 !important; }
p[id=email-title-flavor] a { display: block; } /* puts the username and the action on separate lines */
p[id=email-permalink] { padding: 4px 0 0 0 !important; }
table[id=email-actions] td { padding-top: 0 !important; }
table[id=email-actions] td.right { text-align: right !important; }
table[id=email-actions] .email-list-item { display: block; margin: 1em 0 !important; word-wrap: normal !important; }
span[class=email-list-divider] { display: none; }
}
</style>
</head>
<body style="font-family: Arial, FreeSans, Helvetica, sans-serif; font-size: 13px; width: 100%; -webkit-font-smoothing: antialiased; background-color: #f0f0f0">
<table id="email-wrapper" width="100%" cellspacing="0" cellpadding="0" border="0" style="background-color: #f0f0f0">
<tbody>
<tr valign="middle">
<td id="email-wrapper-inner" style="font-size: 13px; padding: 20px; text-align: center">
<table id="email-content" cellspacing="0" cellpadding="0" border="0" style="font-family: Arial, FreeSans, Helvetica, sans-serif; width: 100%">
<tbody>
<tr valign="top">
<td id="email-content-inner" align="left" style="font-family: Arial, FreeSans, Helvetica, sans-serif; font-size: 13px; background-color: #fff; border: 1px solid #bbb; padding: 20px; text-align: left">
<table id="email-title" cellpadding="0" cellspacing="0" border="0" width="100%">
<tbody>
<tr>
<td id="email-title-avatar" rowspan="2" style="font-size: 13px; text-align: left; vertical-align: top; width: 48px; padding-right: 8px"> <img class="avatar" src="cid:avatar_925838d3d8b1f71935f30b314c925d64" border="0" height="48" width="48" style="-ms-interpolation-mode: bicubic; border-radius: 3px" /> </td>
<td valign="top" style="font-size: 13px">
<div id="email-title-flavor" class="email-metadata" style="margin: 0; padding: 0 0 4px 0; color: #505050">
<a href=" https://wiki.asterisk.org/wiki/display/~rnewton " style="color:#326ca6;text-decoration:none;; color: #326ca6; text-decoration: none">Rusty Newton</a> edited the page:
</div> </td>
</tr>
<tr>
<td valign="top" style="font-size: 13px"> <h2 id="email-title-heading" style="font-size: 16px; line-height: 20px; min-height: 20px; margin: 0; padding: 0"> <a href="https://wiki.asterisk.org/wiki/display/AST/Interactive+Connectivity+Establishment+%28ICE%29+in+Asterisk" style="color: #326ca6; text-decoration: none"> <img class="icon" src="cid:page-icon" alt="" style="border: 0; padding: 0 5px 0 0; text-align: left; vertical-align: middle" /> <strong style="font-size:16px;line-height:20px;vertical-align:top;">Interactive Connectivity Establishment (ICE) in Asterisk</strong> </a> </h2> </td>
</tr>
</tbody>
</table>
<div class="email-indent" style="margin: 8px 0 16px 0">
<p class="aui-message info" style="font-size: 13px; margin: 1em 0; padding: 8px; background-color: #e0f0ff; border: 1px solid #9eb6d4"> <b>Comment:</b> Added example to enabling ICE support </p>
<div class="email-diff">
<div id="page-diffs" class="wiki-content">
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<p class="diff-block-target" style="font-size: 13px">There is a lot to ICE that is beyond the scope of this document. For in-depth detail, see the links to the relevant <a href="#InteractiveConnectivityEstablishment%28ICE%29inAsterisk-rfcs" style="color: #326ca6; text-decoration: none"><span class="diff-html-changed" id="changed-diff-0" style="background-color: #d6f0ff;">RFCs</span></a><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span>below. While the RFCs contain a lot of information, it is mostly oriented at implementation of the ICE protocol and is not necessary for using Asterisk's ICE support. At a user level ICE uses SDP offer/answer, so the general concepts are fairly easy to follow for those familiar with SIP. Also, the details of visually interpreting candidate lists are fairly straightforward and are as easily digestible as media format SDP after a small amount of practice.</p>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<p class="diff-block-target diff-block-context" style="font-size: 13px">Asterisk ICE support is disabled by default, and can be enabled globally in <strong><code style="font-size: 13px"><span class="diff-html-changed" id="changed-diff-1" style="background-color: #d6f0ff;">rtp.conf</span></code></strong><span class="diff-html-changed" style="background-color: #d6f0ff;"> </span>and both globally or on a SIP peer basis in <strong><code style="font-size: 13px"><span class="diff-html-changed" id="changed-diff-2" style="background-color: #d6f0ff;">sip.conf</span></code></strong>.</p>
<table class="diff-macro diff-html-added diff-block-target diff-block-context" style="background-color: #f0f0f0;border: 1px solid #dddddd;margin: 10px 1px;padding: 0 2px 2px;width: 100%;background-color: #ddfade;border-color: #93c49f;">
<thead>
<tr>
<th class="diff-macro-title" style="background-color: transparent; text-align: left; font-weight: normal;padding: 5px;; font-size: 13px"><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"><span class="icon macro-placeholder-icon" style="background-color: ;line-height: 20px;"><img src="https://wiki.asterisk.org/wiki/s/en_GB-1988229788/4252/6ac85e9b14675c5514a674e1aecae99c9505ed36.48/_/images/icons/macrobrowser/dropdown/noformat.png" style="padding-right: 5px; vertical-align: text-bottom;" /> </span>No Format</span></th>
</tr>
</thead>
<tbody>
<tr>
<td class="diff-macro-body" style="background-color: #fff;border: 1px solid #dddddd;padding: 10px;; font-size: 13px"> <pre style="font-size: 13px">
<span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;">icesupport=yes</span>
</pre> </td>
</tr>
</tbody>
</table>
<p class="diff-block-context" style="font-size: 13px">However, as ICE needs a STUN and/or TURN server to gather usable candidates, these do need to be configured to get things working. Since ICE is an RTP level feature, the configuration can be found in the <code style="font-size: 13px">rtp.conf</code> file. The configuration applies to all RTP based communications so the options are set in the <code style="font-size: 13px">general</code> section. To configure a STUN server add a <code style="font-size: 13px">stunaddr</code> option with the hostname of the STUN server. For example,</p>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
<p class="diff-block-target" style="font-size: 13px">Generation of SDP for ICE candidate lists can be disabled by adding <code style="font-size: 13px"><span class="diff-html-added" id="added-diff-1" style="font-size: 100%; background-color: #ddfade;">"</span>icesupport=no<span class="diff-html-added" id="added-diff-2" style="font-size: 100%; background-color: #ddfade;">"</span></code><span class="diff-html-added" style="font-size: 100%; background-color: #ddfade;"> </span>to the general section in <code style="font-size: 13px">sip.conf</code> or on a peer-by-peer basis. Since ICE operates on RTP, ICE details are configured in the <code style="font-size: 13px">rtp.conf</code> file. To disable ICE support in RTP, add <span class="diff-html-added" id="added-diff-3" style="font-size: 100%; background-color: #ddfade;">"</span><code style="font-size: 13px">icesupport=no</code><span class="diff-html-added" id="added-diff-4" style="font-size: 100%; background-color: #ddfade;">" </span>to the general section in <code style="font-size: 13px">rtp.conf</code>.</p>
<p class="diff-context-placeholder" style="font-size: 13px">...</p>
</div>
</div>
</div>
<table id="email-actions" class="email-metadata" cellspacing="0" cellpadding="0" border="0" width="100%" style="border-top: 1px solid #bbb; color: #505050; margin: 8px 0 0 0; padding: 0; color: #505050">
<tbody>
<tr>
<td class="left" valign="top" style="font-size: 13px; padding-top: 8px; max-width: 45%; text-align: left"> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/display/AST/Interactive+Connectivity+Establishment+%28ICE%29+in+Asterisk" style="color: #326ca6; text-decoration: none">View Online</a> </span> <span class="email-list-divider" style="color: #505050; padding: 0 0.350em">·</span> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/plugins/likes/like.action?contentId=21463311" style="color: #326ca6; text-decoration: none">Like</a> </span> <span class="email-list-divider" style="color: #505050; padding: 0 0.350em">·</span> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/pages/diffpagesbyversion.action?pageId=21463311&revisedVersion=5&originalVersion=4" style="color: #326ca6; text-decoration: none">View Changes</a> </span> <span class="email-list-divider" style="color: #505050; padding: 0 0.350em">·</span> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/display/AST/Interactive+Connectivity+Establishment+%28ICE%29+in+Asterisk?showComments=true&showCommentArea=true#addcomment" style="color: #326ca6; text-decoration: none">Add Comment</a> </span> </td>
<td class="right" width="50%" valign="top" style="font-size: 13px; padding-top: 8px; text-align: right"> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/users/removespacenotification.action?spaceKey=AST" style="color: #326ca6; text-decoration: none">Stop watching space</a> </span> <span class="email-list-divider" style="color: #505050; padding: 0 0.350em">·</span> <span class="email-list-item"><a href="https://wiki.asterisk.org/wiki/users/editmyemailsettings.action" style="color: #326ca6; text-decoration: none">Manage Notifications</a> </span> </td>
</tr>
</tbody>
</table> </td>
</tr>
</tbody>
</table> </td>
</tr>
<tr>
<td id="email-footer" align="center" style="font-size: 13px; padding: 0 16px 32px 16px; margin: 0"> <small style="font-size: 11px"> This message was sent by <a class="email-footer-link" style="color:#505050;font-size:11px;text-decoration:none;; color: #326ca6; text-decoration: none; color: #505050; font-size: 11px" href="http://www.atlassian.com/software/confluence">Atlassian Confluence</a> 5.1.5, <a class="email-footer-link" style="color:#505050;font-size:11px;text-decoration:none;; color: #326ca6; text-decoration: none; color: #505050; font-size: 11px" href="http://www.atlassian.com/software/confluence/overview/team-collaboration-software?utm_source=email-footer">Team Collaboration Software</a> </small> </td>
</tr>
</tbody>
</table>
</body>
</html>