Hi guys, I have a simple call scenario:

Caller -> FS -> Callee

Callee answer the call with an additional header called X-MyVar in 200 OK. I'm trying to store that value only for reporting via CHANNEL_HANGUP_COMPLETE - event socket.

I'm retrieving that custom header by looking at ${sip_rh_X-MyVar} via execute_on_answer on B leg, and it's fine. But I'm unable to export it to the A leg.

Here's my dialplan:

<extension name="logvar">
    <condition field="destination_number" expression="^logvar$">
        <action application="export" data="myvar=${sip_rh_X-MyVar}"/>
    </condition>
</extension>

<action application="bridge" data="{execute_on_answer=execute_extension logvar XML external}sofia/external/${destination_number}"/>

I don't want X-MyVar header to be passed to Caller, so I have to export the variable.

But when CHANNEL_HANGUP_COMPLETE fires, the variable variable_myvar present only in the outbound B leg. Look like my export did not work.

Note that I have some upstream exports from A leg to B leg in normal XML dialplan and they're all fine.

Below is my fs_cli log: 192.168.1.100 is my FS.
Dialplan: sofia/external/400@192.168.1.100:5060 Action export(myvar=${sip_rh_X-MyVar})
2017-08-10 17:27:29.958572 [NOTICE] switch_core_session.c:2913 Execute export(myvar=${sip_rh_X-MyVar})
EXECUTE sofia/external/400@192.168.1.100:5060 export(myvar=598c35116ee949.25824485)
2017-08-10 17:27:29.958572 [DEBUG] switch_channel.c:1296 EXPORT (export_vars) [myvar]=[598c35116ee949.25824485]

Not sure what I'm missing in this case.

Any help would be appreciated.

rgds,

Loi Dang

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