Dynamic specify the outbound GW within source code

[fieldpeak]

Dear friends,

i have FS for PSTN outbound call using below dial plan,

<extension name="CallToPSTN" >
   <condition field="destination_number" expression="^(0\d+)$" >
       <action application="bridge" data="sofia/internal/$1 at 1.2.3.4" />
   </condition>
</extension>

While, now i need dynamically specify the outbound GW’s IP address
according to the return result of the external command before routing in
the source code , e.g. if the external command return FS the IP address of
OB GW 6.7.8.9, then

<action application="bridge" data="sofia/internal/$1 at 6.7.8.9" />

however, i don't know which function i should call within the source code
to realize it, could anybody help to advise,

P.S. i know there is existing module “mod_xml_curl” can realize similar
function, however, I could not use it for this case…



thanks a lot!

BR,
Charles
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