<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span style="font-size: 12pt;">Hello, </span><br></div><div class="yui_3_7_2_35_1388889927580_65" style="font-size: 12pt;"><div class="yui_3_7_2_35_1388889927580_69" style="font-size: 12pt;"><div class="y_msg_container"><div id="yiv1083675876"><div class="yui_3_7_2_35_1388889927580_75" style="font-size: 12pt;"><div class="yui_3_7_2_35_1388889927580_76" style="background-color: transparent;"><br></div><div class="yui_3_7_2_35_1388889927580_77" style="background-color: transparent;">I have set up two extensions in my network, both have identical configurations. When I call from ext A to ext B I have no problem; ext B rings and I can hear audio. Now when I call from ext B to ext A I get the following error: "<span style="font-weight: bold;">Got SIP response 400 "Bad From URI" back from 172.10.30.15</span>"<span
style="font-weight: bold;">. </span>Could someone let me know why this happens, what could be the issue and what I need to check for? Thank you for your help.</div><div></div><div> </div><div>Arun Jayaprakash</div><div><br></div></div></div></div></div></div></div></body></html>