Hi folks, <br><br>I used a Draytek Vigor 2820PBX to register iptel, and
I found 400 missing cookie issue. When my pbx send the reinvite to hold
another side, iptel always responded pbx 400 missing cookie. But I
checked invite Via field, its branch included magic cookie &quot;z9hG4bK&quot;. I
attached wireshark packets.<br>
<br>BR<br><font color="#888888">Dennis</font>