<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
        {font-family:"Cambria Math";
        panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
        {font-family:Calibri;
        panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
        {font-family:"TKE Type Book";
        panose-1:2 11 4 4 3 2 2 6 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
        {margin:0cm;
        font-size:11.0pt;
        font-family:"Calibri",sans-serif;
        mso-fareast-language:EN-US;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
        {mso-style-priority:34;
        margin-top:0cm;
        margin-right:0cm;
        margin-bottom:0cm;
        margin-left:36.0pt;
        font-size:11.0pt;
        font-family:"Calibri",sans-serif;
        mso-fareast-language:EN-US;}
.MsoChpDefault
        {mso-style-type:export-only;
        font-family:"Calibri",sans-serif;
        mso-fareast-language:EN-US;}
@page WordSection1
        {size:612.0pt 792.0pt;
        margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
        {page:WordSection1;}
/* List Definitions */
@list l0
        {mso-list-id:877396261;
        mso-list-type:hybrid;
        mso-list-template-ids:-413608888 67567639 67567641 67567643 67567631 67567641 67567643 67567631 67567641 67567643;}
@list l0:level1
        {mso-level-number-format:alpha-lower;
        mso-level-text:"%1\)";
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level2
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level3
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
@list l0:level4
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level5
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level6
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
@list l0:level7
        {mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level8
        {mso-level-number-format:alpha-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:left;
        text-indent:-18.0pt;}
@list l0:level9
        {mso-level-number-format:roman-lower;
        mso-level-tab-stop:none;
        mso-level-number-position:right;
        text-indent:-9.0pt;}
ol
        {margin-bottom:0cm;}
ul
        {margin-bottom:0cm;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="DE" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Hi everyone,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">we are running a call center with really good to use hardphones and audio only up to this point. Because of changing regulation, we soon have to deal with video calls as well, but only for a fraction of the calls (below
 1%).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Instead of switching everyone to clumsy softphones for the rare case of a video call, I’m exploring the ability to branch an incoming call into a pure audio call to the hardphone and optionally a pure video call to the
 softphone.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Has anyone done this in the past and can share some experiences/ideas on<o:p></o:p></span></p>
<ol style="margin-top:0cm" start="1" type="a">
<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1"><span lang="EN-US">Can it be done purely with Kamailio and rtpengine? I don’t have a clear picture of how to do it purely with Kamailio on the SIP side, because we end up with two
 independent legs (to the hardphone and the softphone). Or do I need to deploy an Asterisk, Yate, freeswitch, etc. and doing it as a 3-way conference where one party gets both RTP streams (the trunk) and the other two parties only get one RTP stream (either
 audio or video)?<o:p></o:p></span></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l0 level1 lfo1"><span lang="EN-US">Was it worth the effort or a steady candidate for troubles?<o:p></o:p></span></li></ol>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m looking forward to your thoughts, especially on question b).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Have a nice weekend,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Christoph<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE">Christoph Rüdiger<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE">Digital Operations Architect<br>
DTX OU DACH</span><span style="font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE"><br>
<b>M</b> +49 152 3828 0376 | <a href="mailto:christoph.ruediger@tkelevator.com"><span style="color:#0563C1">christoph.ruediger@tkelevator.com</span></a><br>
TK Aufzüge GmbH | Münchener Str. 100c | 45145 Essen | Deutschland | <a href="http://www.tkelevator.com/de">
<span style="color:#0563C1">www.tkelevator.com/de</span></a></span><span style="font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE"><br>
<br>
</span><b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">VORSITZENDE DES AUFSICHTSRATS</span></b><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#9D9D9D;mso-fareast-language:DE">
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Inge Delobelle<span style="position:relative;top:-.5pt;mso-text-raise:.5pt"> |</span>
<b>GESCHÄFTSFÜHRUNG</b><span style="color:#9D9D9D"> </span>Burkhard Schlenker (Vorsitzender<span style="position:relative;top:-.5pt;mso-text-raise:.5pt">) |</span> Christian Fongern
<span style="position:relative;top:-.5pt;mso-text-raise:.5pt">|</span> Katja Schrafft
<span style="position:relative;top:-.5pt;mso-text-raise:.5pt">| </span><b>SITZ DER GESELLSCHAFT</b> Neuhausen a. d. F.<span style="position:relative;top:-.5pt;mso-text-raise:.5pt"> |</span>
<b>REGISTERGERICHT</b> Stuttgart HRB 731152</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:12.0pt"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#F26C08"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:12.0pt"><span lang="EN-US" style="font-size:8.0pt;font-family:"Arial",sans-serif">This e-mail (including any attachments) may contain confidential and/or privileged information. Any unauthorized use or dissemination of
 this message in whole or in part is strictly prohibited. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
</div>
</body>
</html>