I thought the # had to be encoded.  Doesn&#39;t make sense that it wouldn&#39;t give you the error every time <span></span><br><br>On Tuesday, February 16, 2016, Aqs Younas &lt;<a href="mailto:aqsyounas@gmail.com">aqsyounas@gmail.com</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi users,<div><br></div><div>My freeswitch is replying with me 400 Bad To Header whenever It receives Bye containing this To Header. </div><div><br></div><div>To: 1111#15122031234 &lt;sip:1111#<a href="http://15122031234@192.168.10.50:5060" target="_blank">15122031234@192.168.10.50:5060</a>&gt;;tag=NKU2jrZvFaK0j<br></div><div><br></div><div>But I wonder in the case of Invite containing, this header everything is fine. </div><div><br></div><div>Is there something wrong with this header? (#?)<br></div><div><br></div><div>Best regards. </div><div><br></div></div>
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