I’m attempting to setup FS to failover from gw1, gw2, and gw3 subsequently. AND if any gateway response with NO_ANSWER or ALLOTED_TIMEOUT, then the next attempt should be stop. Using “fail_on_single_reject” var, I tried following script : <extension name="public_extensions"> <condition field="destination_number" expression="^1234$"> <action application="sleep" data="2000"/> <action application="answer"/> <action application="bridge" data="{ignore_early_media=true,fail_on_single_reject=NO_ANSWER, ALLOTTED_TIMEOUT}[leg_timeout=20}]sofia/gateway/gw1/7321231234|[leg_timeout=20]sofia/gateway/gw2/7321231234|[leg_timeout=20]sofia/gateway/gw3/7321231234}"/> <action application="hangup"/> </condition> </extension> Bridge app still continue attempting call to each gw1, gw2, and gw3 when ALLOTED_TIMEOUT response. From searching lists, above dialplan should work out fine. Did I misses any steps? Btw, tried above on FreeSWITCH Version 1.5.6b+git~20131010T172322Z~1cd6d44b06 (git 1cd6d44 2013-10-10 17:23:22Z) windows built. Thanks, Jkwan