<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:Roboto;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.E-MailFormatvorlage18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></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"><span style="mso-fareast-language:EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">I did not look in the RFC regarding the removing the video line in questions. You are probably referring to the sdp_remove_media() function.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Do you expect problems when you are doing this? A quick web search found a similar suggestion also e.g. for Cisco router and others.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Another option would be to just return a 415 on the proxy level, by also adding the supported types to the Accept header, like this:<o:p></o:p></span></p>
<p class="MsoNormal">Accept: audio/*<span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Henning<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Henning Westerholt –
</span><span style="mso-fareast-language:EN-US"><a href="https://skalatan.de/blog/"><span lang="EN-GB" style="color:#0563C1">https://skalatan.de/blog/</span></a></span><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US">Kamailio services –
</span><span style="mso-fareast-language:EN-US"><a href="https://gilawa.com/"><span lang="EN-GB" style="color:#0563C1">https://gilawa.com</span></a></span><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="margin-left:35.4pt"><b>From:</b> sr-users <sr-users-bounces@lists.kamailio.org>
<b>On Behalf Of </b>Simone de Blasiis<br>
<b>Sent:</b> Friday, April 22, 2022 4:32 PM<br>
<b>To:</b> sr-users@lists.kamailio.org<br>
<b>Subject:</b> [SR-Users] How to disable video in invite with both audio and video<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">Hello to everyone,</span><o:p></o:p></p>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">we have a Kamailio 5.5 + RTPEngine deployment.<br>
Some devices will send an invite with both audio and video in the offer and we are trying to disable the video portion of the invite by either setting the video port to 0 or by setting a=inactive in the video portion of the SDP packet.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">We know that sdpops has a function that would be able to remove the video portion but it violates standards so we can't use it.<br>
We need to disable the video in the SDP offers because one of the pstn providers we are using doesn't accept invites that contain a video offer.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">I've spent days searching but I can't find an obvious way of achieving this.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">We were originally doing it with textops but we've been having some issues where the sdp wouldn't be modified correctly in reinvites after the original call is
in place so we're looking for alternatives.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">Can someone please help us?<br>
Thanks in advance<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><span style="font-size:10.5pt;font-family:Roboto">Simone de Blasiis<o:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>