<div>Any help is very much appreciated!</div><div><br></div><div>Thanks,</div><div>Jeff</div><div><br><div class="gmail_quote"><div>On Tue, Dec 27, 2016 at 4:38 PM Jeff Chua &lt;<a href="mailto:jeff.chua.linux@gmail.com">jeff.chua.linux@gmail.com</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Tue, Dec 27, 2016 at 7:03 AM, Brian West &lt;<a href="mailto:brian@freeswitch.org" class="gmail_msg" target="_blank">brian@freeswitch.org</a>&gt; wrote:<br class="gmail_msg"><br>&gt; Any of those variables with dashes are invalid, you should look those up,<br class="gmail_msg"><br>&gt; those are params.<br class="gmail_msg"><br><br class="gmail_msg"><br>Ok, I set all these to false  ...<br class="gmail_msg"><br><br class="gmail_msg"><br># sip_profiles/internal.xml<br class="gmail_msg"><br>        &lt;param name=&quot;disable-transcoding&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br>        &lt;param name=&quot;inbound-late-negotiation&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br>        &lt;param name=&quot;inbound-zrtp-passthru&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br><br class="gmail_msg"><br># ./sip_profiles/external.xml<br class="gmail_msg"><br>        &lt;param name=&quot;disable-transcoding&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br>        &lt;param name=&quot;inbound-late-negotiation&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br>        &lt;param name=&quot;inbound-zrtp-passthru&quot; value=&quot;false&quot;/&gt;<br class="gmail_msg"><br><br class="gmail_msg"><br>Still no sound from GSM to SIP.<br class="gmail_msg"><br><br class="gmail_msg"><br>What else can I try?<br class="gmail_msg"><br><br class="gmail_msg"><br>Thanks,<br class="gmail_msg"><br>Jeff<br class="gmail_msg"><br></blockquote></div></div>