FreeSWITCH排除网关组内不可达网关

以下几种写法都可以：

<action application="bridge" data="sofia/gateway/${distributor(<listname> ${sofia(profile <profilename> gwlist down)})}/$1"/>
<action application="bridge" data="sofia/gateway/${distributor <listname> ${sofia profile <profilename> gwlist down}}/$1"/>
<action application="bridge" data="sofia/gateway/${expand(distributor <listname> \${sofia(profile <profilename> gwlist down)})}/$1"/>

API命令如下：

expand distributor <listname> ${sofia profile <profilename> gwlist down}