Hi,<br><br>Im having problems with jitterbuffer when transcoding from GSM to PCMa. On the incoming (GSM) side we have mobile devices using 3G network and generating jitter and packet loss.<br>If a packet arrives late or lost, it gets replaced by a high pitch noise on the output (PCMa) stream.<br>

<br>I&#39;ve tested with other codecs (pcmu,opus) on A leg which worked fine.<br><br>Settings in dialplan:<br>&lt;action application=&quot;set&quot; data=&quot;rtp_jitter_buffer_during_bridge=true&quot;/&gt;<br>&lt;action application=&quot;set&quot; data=&quot;jitterbuffer_msec=200:200:160&quot;/&gt;<br>

<br>Log,trace,audio are in ticket <a href="http://jira.freeswitch.org/browse/FS-5511" target="_blank">#5511</a><br><br>Could you give me some hints how to make it work?<br><br>Thanks in advance,<br>Christian<br>