<div dir="auto">Did you try to disable VAD? </div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 27, 2019, 6:02 PM Stefano Bertuola <<a href="mailto:stefano.bertuola@gmail.com">stefano.bertuola@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">Hi experts.</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">I am using FS for transcoding a call between an iPhone (AMR codec used) to a Cisco 880 Voice simulating PSTN (a legacy phone is connected here).</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">A call is initiated by iPhone and terminated to the fixed phone; if the B side is silent (VAD enabled), the Cisco 880 stops sending RTP towards FS and, then, FS to iPhone.</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">After 10sec not receiving RTPs, iPhone drops the call with "Reason: SIP;cause=200;text="RTP Timeout" ".</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">I tried several options to make the FS not stopping sending RTPs towards iPhone or any other possibility to avoid this issue, but I was not able to get a workaround.</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">Any idea?</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)">Br. Stefano</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(11,83,148)"><br></div></div></div>
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