Dear All,<div>           I found problem when setup FS behind  Huwei SBC. </div><div>my network diagram is. </div><div>                            NAT                     Public IP                         NAT 10.x.x.x   </div>
<div>[SIP Client 1] ----- [ADSL Router] ----------------------------  SBC   ----------------------------  FS</div><div>                                                                            /</div><div>[SIP Client 2] ----- [ADSL Router] --------------------------/</div>
<div><br></div><div>It&#39;s work fine when call incomming and play sound. But i got 403 from SBC when i try to call Local extension or originate call to registerd user.</div><div><br></div><div>I thing nat problem can someone show me sip profile config work in this case.</div>
<div><br></div><div><br></div><div>BG</div><div><br></div><div>Dome C.</div>