<div dir="ltr"><div class="gmail-gE gmail-iv gmail-gt" style="padding:20px 0px 0px;font-size:12.8px"><br class="gmail-Apple-interchange-newline"><table cellpadding="0" class="gmail-cf gmail-gJ" style="border-collapse:collapse;margin-top:0px;width:auto;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:0.875rem;letter-spacing:0.2px;display:block"><tbody style="display:block"><tr class="gmail-acZ" style="height:auto;display:flex"><td class="gmail-gF gmail-gK" style="white-space:nowrap;padding:0px;vertical-align:top;width:554.304px;line-height:20px;display:block;max-height:20px"><table cellpadding="0" class="gmail-cf gmail-ix" style="border-collapse:collapse;table-layout:fixed;width:553.636px"><tbody><tr><td class="gmail-c2" style="display:flex"><h3 class="gmail-iw" style="overflow:hidden;max-width:92%;font-size:0.75rem;font-weight:inherit;margin:inherit;letter-spacing:0.3px;color:rgb(95,99,104);line-height:20px"><span class="gmail-qu" tabindex="-1"><span name="Aatif Shaikh" class="gmail-gD" style="color:rgb(32,33,36);font-size:0.875rem;font-weight:bold;display:inline;vertical-align:top;letter-spacing:0.2px;line-height:20px">Aatif Shaikh</span> <span class="gmail-go" style="vertical-align:top;color:rgb(85,85,85)"><<a href="mailto:aatif.shaikh@ecosmob.com">aatif.shaikh@ecosmob.com</a>></span></span></h3></td></tr></tbody></table></td><td class="gmail-gH gmail-bAk" style="text-align:right;white-space:nowrap;vertical-align:top;display:block;max-height:20px"><div class="gmail-gK" style="padding:0px;display:flex"><img class="gmail-f gmail-gW" src="https://mail.google.com/mail/u/0/images/cleardot.gif" title="IMG_20181210_171253.jpg, IMG_20181210_170808.jpg" alt="Attachments" style="vertical-align: top; background: url("https://ssl.gstatic.com/mail/sprites/general-76906fbc82f79822625038e272fa3893.png") 0px 0px no-repeat; height: 21px; width: 21px;"><span id="gmail-:js" class="gmail-g3" title="Dec 13, 2018, 5:27 PM" alt="Dec 13, 2018, 5:27 PM" tabindex="-1" style="vertical-align:top;margin:0px;font-size:0.75rem;letter-spacing:0.3px;color:rgb(95,99,104);display:block;line-height:20px">5:27 PM (5 minutes ago)</span><div class="gmail-zd gmail-bi4" title="Not starred" tabindex="0" style="display:inline-block;height:20px;margin-left:20px;outline:0px"><span class="gmail-T-KT" style="display:inline-flex;height:20px;text-align:center;width:20px;padding:0px;margin:0px;border:none;outline:none"></span></div></div></td><td class="gmail-gH" style="text-align:right;white-space:nowrap;vertical-align:top;display:flex"></td><td class="gmail-gH gmail-acX gmail-bAm" rowspan="2" style="text-align:right;white-space:nowrap;vertical-align:top;display:block;max-height:20px"><div class="gmail-T-I gmail-J-J5-Ji gmail-T-I-Js-IF gmail-aaq gmail-T-I-ax7 gmail-L3" tabindex="0" style="display:inline-flex;border-radius:2px 0px 0px 2px;font-size:0.875rem;text-align:center;margin:0px 0px 0px 20px;height:20px;line-height:18px;min-width:0px;outline:none;padding:0px;background:transparent;color:rgb(68,68,68);border:none"><img class="gmail-hB gmail-T-I-J3" src="https://mail.google.com/mail/u/0/images/cleardot.gif" alt="" style="background: url("https://www.gstatic.com/images/icons/material/system/1x/reply_black_20dp.png") 50% 50% / 20px no-repeat; height: 20px; margin: 0px; vertical-align: middle; width: 20px; opacity: 0.7; display: inline-block; padding: 0px; transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1) 0s;"></div><div id="gmail-:15c" class="gmail-T-I gmail-J-J5-Ji gmail-T-I-Js-Gs gmail-aap gmail-T-I-awG gmail-T-I-ax7 gmail-L3" tabindex="0" style="display:inline-flex;border-radius:0px 2px 2px 0px;font-size:0.875rem;text-align:center;margin:0px 0px 0px 20px;height:20px;line-height:18px;min-width:0px;outline:none;padding:0px;background:transparent;color:rgb(68,68,68);border:none"><img class="gmail-hA gmail-T-I-J3" src="https://mail.google.com/mail/u/0/images/cleardot.gif" alt="" style="background: url("https://www.gstatic.com/images/icons/material/system/1x/more_vert_black_20dp.png") 50% 50% / 20px no-repeat; height: 20px; width: 20px; margin: 0px; vertical-align: middle; opacity: 0.7; display: inline-block; padding: 0px; transition: opacity 0.15s cubic-bezier(0.4, 0, 0.2, 1) 0s;"></div></td></tr><tr class="gmail-acZ gmail-xD" style="height:auto;display:flex"><td colspan="3"><table cellpadding="0" class="gmail-cf gmail-adz" style="border-collapse:collapse;table-layout:fixed;white-space:nowrap;width:833.636px"><tbody><tr><td class="gmail-ady" style="overflow:visible;text-overflow:ellipsis;display:flex;line-height:20px"><div class="gmail-iw gmail-ajw" style="overflow:hidden;max-width:92%;display:inline-block"><span class="gmail-hb" style="vertical-align:top;color:rgb(95,99,104);font-size:0.75rem;letter-spacing:0.3px;line-height:20px">to <span dir="ltr" name="users" class="gmail-g2" style="vertical-align:top">users</span></span></div><div class="gmail-ajy" tabindex="0" style="display:inline-flex;margin-left:4px;vertical-align:top;border:none;outline:none"><img class="gmail-ajz" id="gmail-:10g" src="https://mail.google.com/mail/u/0/images/cleardot.gif" alt="" style="background: url("https://www.gstatic.com/images/icons/material/system/1x/arrow_drop_down_black_20dp.png") 50% 50% / 20px no-repeat; cursor: pointer; padding: 0px; vertical-align: baseline; height: 20px; width: 20px; border: none; margin: 0px 0px 0px auto; right: 0px; top: 0px; display: flex; opacity: 0.54;"></div></td></tr></tbody></table></td></tr></tbody></table></div><div id="gmail-:113"><div class="gmail-qQVYZb"></div><div class="gmail-utdU2e"></div><div class="gmail-btm"></div></div><div class="gmail-"><div class="gmail-aHl" style=""></div><div id="gmail-:174" tabindex="-1"></div><div id="gmail-:11j" class="gmail-ii gmail-gt" style="font-size:12.8px;direction:ltr;margin:8px 0px 0px;padding:0px"><div id="gmail-:119" class="gmail-a3s gmail-aXjCH" style="overflow:hidden;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:small;line-height:1.5"><div dir="ltr"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">Dear Team,</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">we need to used Opensips as B2BUA. With the help of </span><b style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">registrant</b><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"> we are able to register with Gateway and now we want the below call scenario to achieve with B2BUA.</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">1) Any user(Not register with Opensip) from another IPPBX (Asterisk) make a call to Opensips.</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">2) We authenticate this user as per IPPBX IP address.</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">3) Then we make a call to Gateway from Opensips after modifying From User $fU, which is already register with Gateway via registrant.</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">4) Gateway reply back 407.</span><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><br style="font-size:13px;outline:none;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif"><span style="font-size:13px;color:rgb(38,50,56);font-family:Roboto,Arial,sans-serif">We need to resolve this 407 with authentication but we don't have any more details how to do it with Opensips.</span>Please provide suggestions  for this.<div class="gmail-yj6qo"></div><br class="gmail-Apple-interchange-newline"></div></div></div></div></div>