Hi, I am using following sip trunk detail in my xlite it work fine and i can able to make call but when i use with my freeswitch in gateway ,I am always getting 403 error i understand have problem in my gateway config xml. SIP TRUNK details (Examples): Username: trunkusername@bangalore.relianceims.in Password: trunkpassword outbound proxy: 10.21.254.231 Bellow is my reliancegateway.xml <include> <gateway name="reliance"> <param name="realm" value="bangalore.relianceims.in" /> <param name="username" value="trunkusername" /> <param name="password" value="trunkpassword" /> <param name="proxy" value="10.21.254.231" /> <param name="register" value="true" /> <param name="ping" value="5" /> <param name="ping-max" value="3" /> <param name="retry-seconds" value="5" /> <param name="expire-seconds" value="60" /> <param name="context" value="public"/> <variables> <variable name="verbose_sdp" value="true"/> </variables> </gateway> </include> Is there any way to use Auth username in gateway config xml