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Hello Ulrich,<br>
<br>
take a look at
<a class="moz-txt-link-freetext" href="https://freeswitch.org/confluence/display/FREESWITCH/Codec+Negotiation">https://freeswitch.org/confluence/display/FREESWITCH/Codec+Negotiation</a><br>
The parameter "disable-transcoding" is for the early codec
negotiation. But you want to have a late codec negotiation.<br>
<br>
<blockquote type="cite">
<p><em>Note</em>: it is commonly misunderstood that this parameter
disables the transcoding capability in FS. That is wrong.</p>
<p>This parameter just changes the outbound codec to match the one
negotiated on the inbound leg so that no transcoding will be
required.</p>
</blockquote>
(Wiki Quote)<br>
<br>
Also the codec list is a priority list. When you list PCMU first, it
is chosen first.<br>
<br>
- Paul<br>
<br>
<div class="moz-cite-prefix">Am 07.11.18 um 13:55 schrieb Ulrich
Backes:<br>
</div>
<blockquote type="cite"
cite="mid:380673553.633982.1541595357082@webmail.strato.de">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="UTF-8">
<p>Hi guys,<br>
<br>
I've investigated many hours and cannot solve this problem:<br>
A and B should use g711u. </p>
<p><br>
A: <img src="cid:part1.2CF039A6.DA99EF7B@paulzillmann.de"
style="max-width: 100%;" class="aspect-ratio" alt=""
from_clipboard="true"></p>
<p><br>
B: <img src="cid:part2.C6B3B963.E47502AC@paulzillmann.de"
style="max-width: 100%;" class="aspect-ratio" alt=""
from_clipboard="true"><br>
<br>
But FreeSwitch decides to transcode:<br>
</p>
<p> <img src="cid:part3.D8114434.BDC1F822@paulzillmann.de"
style="max-width: 100%;" class="aspect-ratio" alt=""
from_clipboard="true"><br>
The settings:<br>
vars.xml<br>
<X-PRE-PROCESS cmd="set"
data="media_mix_inbound_outbound_codecs=false"/> <br>
<X-PRE-PROCESS cmd="set"
data="global_codec_prefs=OPUS,G722,PCMU,PCMA,VP8"/> <br>
<br>
internal.xml<br>
<param name="inbound-codec-negotiation" value="greedy"/><br>
<param name="inbound-late-negotiation" value="true"/> <br>
<param name="disable-transcoding" value="true"/> <br>
<br>
<param name="inbound-proxy-media" value="false"/> <br>
<param name="inbound-bypass-media" value="false"/><br>
<param name="inbound-codec-prefs"
value="$${global_codec_prefs}"/><br>
<param name="outbound-codec-prefs"
value="$${global_codec_prefs}"/><br>
<br>
default.xml (Using the demo-Dialplan)<br>
<extension name="Local_Extension"><br>
...<br>
<br>
Using FS v 1.8</p>
<p>Thanks.<br>
Uli<br>
<br>
</p>
<br>
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