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You’re going to want to go the transcoder route because none of our phones (to my knowlege) support true inband DTMF.
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<div class="">-Ryan </div>
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<div class="">On May 8, 2015, at 2:11 PM, Brian Meade <<a href="mailto:bmeade90@vt.edu" class="">bmeade90@vt.edu</a>> wrote:</div>
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<div dir="ltr" class="">Also there's no way to signal true inband in SDP I know of. It's not something that is negotiated as far as I know. Endpoint just has to support it or rely on the universal transcoder.</div>
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<div class="gmail_quote">On Fri, May 8, 2015 at 2:06 PM, Brian Meade <span dir="ltr" class="">
<<a href="mailto:bmeade90@vt.edu" target="_blank" class="">bmeade90@vt.edu</a>></span> wrote:<br class="">
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<div dir="ltr" class="">Only way I've ever seen forcing true inband working was using a universal transcoder.</div>
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<div class="h5">On Fri, May 8, 2015 at 1:58 PM, Tommy Schlotterer <span dir="ltr" class="">
<<a href="mailto:tschlotterer@netechcorp.com" target="_blank" class="">tschlotterer@netechcorp.com</a>></span> wrote:<br class="">
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<p class="MsoNormal">I am working at integrating a 3<sup class="">rd</sup> party TTY server into a customer’s environment. The software requires inband(NOT RFC2833 which is sometimes called inband).<u class=""></u><u class=""></u></p>
<p class="MsoNormal"><u class=""></u> <u class=""></u></p>
<p class="MsoNormal">What am I looking for in the SDP to signal inband DTMF, how do I set it up on the gateway and CCM sides?<u class=""></u><u class=""></u></p>
<p class="MsoNormal"><u class=""></u> <u class=""></u></p>
<p class="MsoNormal">Thanks<u class=""></u><u class=""></u></p>
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Tommy <u class=""></u><u class=""></u></p>
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<p class="MsoNormal"><b class=""><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#3c61af" class="">Tommy Schlotterer</span></b><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#3c61af" class="">
</span><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#eca83c" class="">|
</span><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#3c61af" class="">Systems Engineer<u class=""></u><u class=""></u></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Arial",sans-serif;color:#3c61af" class="">CCNA, CCNA Voice<u class=""></u><u class=""></u></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;color:#3a5fad" class="">48325 Alpha Dr. Ste. 150</span><u class=""></u><u class=""></u></p>
<p class="MsoNormal"><span style="font-size:8.5pt;color:#3a5fad" class="">Wixom, MI 48393</span><u class=""></u><u class=""></u></p>
<p class="MsoNormal"><b class=""><span style="font-size:8.5pt;color:#3a5fad" class="">p</span></b><span style="font-size:8.5pt;color:#3a5fad" class="">
<a href="tel:248.468.0710" value="+12484680710" target="_blank" class="">248.468.0710</a></span><u class=""></u><u class=""></u></p>
<p class="MsoNormal"><b class=""><span style="font-size:8.5pt;color:#3a5fad" class="">e</span></b><span style="font-size:8.5pt;color:#3a5fad" class="">
</span><span style="font-size:8.5pt" class=""><a href="mailto:tschlotterer@netechcorp.com" target="_blank" class=""><span style="color:blue" class="">tschlotterer@netechcorp.com</span></a><u class=""></u><u class=""></u></span></p>
<p class="MsoNormal"><b class=""><span style="font-size:8.5pt;color:#3a5fad" class="">w
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