if you uuid_dump the channel<div>you can see everything that it has. quickest way to get your answer<span></span><br><br>On Monday, April 18, 2016, Miroslav Levanic <<a href="mailto:Miroslav.Levanic@enghouse.com">Miroslav.Levanic@enghouse.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">I’m using switch_channel_get_variable to extract sip headers with already predefined channel variables (<a href="https://freeswitch.org/confluence/display/FREESWITCH/Channel+Variables" target="_blank">https://freeswitch.org/confluence/display/FREESWITCH/Channel+Variables</a>).<u></u><u></u></p>
<p class="MsoNormal">I’ve found that some undefined sip headers can be extracted using only ‘sip_’ prefix (for instance ‘sip_P-Preferred-Identity’) and some using ‘sip_h_’ prefix (like is ‘sip_h_Diversion’).<u></u><u></u></p>
<p class="MsoNormal">Is there some rule or detailed explanation when to use just ‘sip_’ or ‘sip_h_’ in the name of the required channel variable?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks,<u></u><u></u></p>
<p class="MsoNormal">Miro<u></u><u></u></p>
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