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<p class="MsoNormal"><span style="color:#1F497D">In our 3PCC model, the switch is not in a position to do that. It does not control the details of the RTP stream (codec, timestamp, sequence, marker, etc).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D">David<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Paul Timmins [mailto:paul@timmins.net]
<br>
<b>Sent:</b> Tuesday, April 15, 2014 08:20<br>
<b>To:</b> Hiers, David (DS)<br>
<b>Cc:</b> voiceops@voiceops.org<br>
<b>Subject:</b> Re: [VoiceOps] Signaling hold to the PSTN<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Shouldn't the local switch just play hold music into the network, and the other side be completely unaware of hold at all?<br>
<br>
On Tue, 04/15/2014 10:39 AM, "Hiers, David" <<a href="mailto:David.Hiers@adp.com">David.Hiers@adp.com</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal">What has been your experience in signaling holds to the PSTN? The more everyone converts to SIP and peers with our carriers, the more stacks we see on the far end. A growing number seem to have trouble accepting any kind of hold SDP signals
such as a=inactive/sendonly, quad zeros, etc.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Is this vexing you too, or is it just me?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">David</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New""> </span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">_______________________________________________<br>
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