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<p class="MsoNormal">I guess this is targeted at Anthony, however Brian or Michael may also be able to answer these.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am currently undertaking BT’s SIP compliance testing on behalf of my client in the UK (on the latest production release of FreeSWITCH 1.4.20) and BT have requested the following off the software supplier (which could also be in the form
of documentation, however if you simply state “Yes” for each of these then that should be enough):<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RFC 3261 compliance<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I have already pointed BT to <span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black">
<a href="https://freeswitch.org/confluence/display/FREESWITCH/Specifications">https://freeswitch.org/confluence/display/FREESWITCH/Specifications</a></span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RFC 3550 compliance<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RTP clock-source accuracy (RTP clock sources shall be accurate to within 66ppm (ie. Shall not drift from a stratum 0 clock source by more than 20ms over the course of a 3 minute call)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>When calculating the jitter estimate to be sent in a receiver report the variable holding this data shall be initialised to zero before the first incoming RTP packet is processed (i.e. the “s->jitter” variable in RFC 3550 [8] Appendix
A.8)<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">5)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RFC 2833 compliance<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I have already pointed BT to <span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black">
<a href="https://freeswitch.org/confluence/display/FREESWITCH/Specifications">https://freeswitch.org/confluence/display/FREESWITCH/Specifications</a></span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">6)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RFC 4028 keep-alive timer compliant<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">7)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Feature support:<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Call-hold reject<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>RFC 3264 compliance<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:72.0pt;text-indent:-18.0pt;mso-list:l0 level2 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">c.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Call-hold black-holing<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">8)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>G.711 Packet Loss Concealment (as described in G.711 Appendix I)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Like I said above BT are just looking for a statement to say these are supported inside FreeSWITCH from the developers of FreeSWITCH. That is why a simple “yes” will suffice.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">One idea is to perhaps add all of these (the ones that are missing) to the
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black"><a href="https://freeswitch.org/confluence/display/FREESWITCH/Specifications">https://freeswitch.org/confluence/display/FREESWITCH/Specifications</a> page. Just an idea.</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks in advance,<o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-AU">Andrew Keil<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="mso-fareast-language:EN-AU">Visytel Pty Ltd<o:p></o:p></span></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
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