<div dir="ltr"><div dir="ltr">Interesting. Thanks for the tidbit. I will play around with msg_apply_changes and find the right place for it.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jun 26, 2020 at 9:01 AM Richard Fuchs <<a href="mailto:rfuchs@sipwise.com">rfuchs@sipwise.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div>Rtpengine takes and replaces the entire
SDP body, so if there's another module also manipulating the SDP,
one module won't see the changes made by the other one unless you
call msg_apply_changes in between, leaving you with bits of string
in the wrong places.<br>
</div>
<div><br>
</div>
<div>Cheers<br>
</div>
<div><br>
</div>
<div>On 26/06/2020 08.50, Andrew Chen wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Thanks Richard.
<div><br>
</div>
<div>I do have the nathelper module running but not rtpproxy.
How does nathelper cause this issue?</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Jun 26, 2020 at 8:27
AM Richard Fuchs <<a href="mailto:rfuchs@sipwise.com" target="_blank">rfuchs@sipwise.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<div>Looks like you're using both rtpengine and some other
SDP-modifying module together, such as nathelper or
rtpproxy, without calling msg_apply_changes() in between.</div>
<div><br>
</div>
<div>Cheers<br>
</div>
<div><br>
</div>
<div>On 25/06/2020 16.46, Andrew Chen wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi forum,
<div><br>
</div>
<div>I'm starting my rtpengine project and I'm facing a
strange problem with rtpengine. I am seeing this in
the SDP part of the INVITE:</div>
<div><br>
</div>
<div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(178,178,178);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">a=rtcp:52021</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(178,178,178);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">a=rtcp-mux</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(20,153,2);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">2001:470:7:3A7:0:0:0:2</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(178,178,178);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">a=direction:active</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(178,178,178);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">a=oldmediaip:54.153.25.234</span></p>
</div>
<div><br>
</div>
<div>As you can see there is a random insert of the
local kamailio IP in there and I'm have tried the
following to remove it but failed to succeed:</div>
<div><br>
</div>
<div>- Remove in the offer the combination of ICE and
replace-session-connection flags</div>
<div>- Switched between rtpengine_offer and
rtpengine_manage</div>
<div>- Restarted ngcp-rtpengine-daemon process</div>
<div>- Used sdpops function sdp_remove_line_by_preifx()</div>
<div><br>
</div>
<div>Currently running Kamailio 5.1.2.</div>
<div><br>
</div>
<div>I am running out of ideas.</div>
<div><br>
</div>
<div>Any suggestions would be greatly appreciated.</div>
<div><br>
</div>
<div>-- <br>
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr" style="font-size:12.8px">Andy
Chen</div>
<div dir="ltr" style="font-size:12.8px">
<div>Sr. Telephony Lead Engineer</div>
<div><a href="mailto:achen@thinkingphones.com" target="_blank">achen@</a><a href="http://fuze.com" target="_blank">fuze.com</a><br>
</div>
<div><br>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
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<fieldset></fieldset>
<pre>_______________________________________________
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_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
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<div><br>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr" style="font-size:12.8px">Andy Chen</div>
<div dir="ltr" style="font-size:12.8px">
<div>Sr. Telephony Lead Engineer</div>
<div>415 516 5535 (M)</div>
<div><a href="mailto:achen@thinkingphones.com" target="_blank">achen@</a><a href="http://fuze.com" target="_blank">fuze.com</a></div>
<div><br>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
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Notice: The information contained in this e-mail and any</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">
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may be confidential. If you are not an intended recipient, you</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">
<span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">are
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<span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">contents
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<br>
<fieldset></fieldset>
<pre>_______________________________________________
Kamailio (SER) - Users Mailing List
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</pre>
</blockquote>
</div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr" style="font-size:12.8px">Andy Chen</div><div dir="ltr" style="font-size:12.8px"><div>Sr. Telephony Lead Engineer</div><div>415 516 5535 (M)</div><div><a href="mailto:achen@thinkingphones.com" target="_blank">achen@</a><a href="http://fuze.com" target="_blank">fuze.com</a></div><div><br></div></div></div></div></div></div>
<br>
<span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">*Confidentiality Notice: The information contained in this e-mail and any</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">attachments may be confidential. If you are not an intended recipient, you</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">are hereby notified that any dissemination, distribution or copying of this</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">e-mail is strictly prohibited. If you have received this e-mail in error,</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">please notify the sender and permanently delete the e-mail and any</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">attachments immediately. You should not retain, copy or use this e-mail or</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">any attachment for any purpose, nor disclose all or any part of the</span><br style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)"><span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:14px;background-color:rgb(255,255,255)">contents to any other person. Thank you.*</span>