the scenario is Alice calls Bob and Alice hangs up before Bob answers the call,

while using the default dialplan as

<action application="bridge" data="user/${dialed_extension}@${domain_name}" />

Bob instantly goes hangup after Alice hung up,

but after change the dialplan to have a lua script process the bridging, as

<action application="lua" data="bridge.lua $1" />  // $1 is the destination_number

Bob will still be ringing for quite a long time, the bridge.lua is simple:

dest = argv[1]

session:execute("set", "hangup_after_bridge=true");

dial_string = string.format('user/%s', dest)

sessionB = freeswitch.Session(dial_string)

if sessionB:ready() then

freeswitch.bridge(session, sessionB);

else

freeswitch.consoleLog("info", "---session NOT ready \n ")

-- ORININATOR_CANCEL can be checked here though omitted for simplicity

session:hangup();

end

why the bridge.lua is not able to respond to ORININATOR_CANCEL after Alice hangs up?