I have configured a new gateway for outbound calls from FS as <list name="custom_carrier" default="deny"> <node type="allow" cidr=xxx.xxx.xxx.xxx/32"/> </list> In acl.conf.xml Created dialplan\default\01_custom_carrier.xml file as <include> <!-- Dial any 10 digit number 1(2223334444) here --> <extension name="Dial Out Custom Gateway"> <condition field="destination_number" expression="^9(1\d{10})$"> <action application="bridge" data="sofia/gateway/custom_carrier/$1"/> </condition> </extension> </include> Created sip_profiles\external\custom_carrier.xml <include> <gateway name="custom_carrier"> <param name="username" value="anything"/> <param name="password" value="anything"/> <param name="auth-calls" value="false"/> <param name="apply-outbound-acl" value="custom_carrier"/> <param name="apply-inbound-acl" value="custom_carrier"/> <param name="register" value="false"/> </gateway> </include> When I make an outbound call from registered extension (1001) xlite I get the following error. (I also tried using SJ phone) 2011-07-28 10:10:24.388677 [DEBUG] sofia.c:4200 Channel sofia/external/14152484142 entering state [terminated][503] 2011-07-28 10:10:24.388677 [NOTICE] sofia.c:4836 Hangup sofia/external/14152484142 [CS_CONSUME_MEDIA] [NORMAL_TEMPORARY_FAILURE] 2011-07-28 10:10:24.388677 [DEBUG] switch_channel.c:2145 Send signal sofia/external/14152484142 [KILL] 2011-07-28 10:10:24.388677 [DEBUG] switch_core_session.c:1022 Send signal sofia/external/14152484142 [BREAK] 2011-07-28 10:10:24.388677 [DEBUG] switch_core_state_machine.c:314 (sofia/external/14152484142) Running State Change CS_HANGUP 2011-07-28 10:10:24.388677 [DEBUG] switch_core_state_machine.c:498 (sofia/external/14152484142) State HANGUP 2011-07-28 10:10:24.388677 [DEBUG] mod_sofia.c:435 sofia/external/14152484142 Overriding SIP cause 503 with 503 from the other leg I have attached the complete log too. Iam a new FC users. I have referred to the following thread http://lists.freeswitch.org/pipermail/freeswitch-users/2011-March/070294.htm... and also read the section "Connecting to the world with gateways" in FreeSwitch book several times. Any help would be appreciated. Note: Iam able to make outbond calls from softphone through the trunk without FS. Srini