Queue gosub variables not changed

[vladimir.veljkovic.n]

I have a problem with variables in queue. This is my configuration:

[all-busy]

exten => s,1,Set(__CID=${callerdid})

same => n,Set(SHOP=${shopname})

same => n,Set(__STIME=${STRFTIME(${EPOCH},,%Y%m%d_%H%M)})

same => n,Set(__START=${STRFTIME(${EPOCH},,%Y-%m-%d %H:%M:%S)}))

same => n,Queue(holding,,,,,,,queueinfo)

exten => h,1,Set(OID=${CDR(dstchannel):4:12})

exten => h,n,GotoIf([ "{CDR(disposition)}" != “ANSWERED” ]?addskip:addcall)

same => n(addskip),Set(ODBC_MISSED()=${CID},${SHOP})

same => n(addcall),Set(ODBC_HOLDED()=${OID},${CID},${SHOP},${CDR(duration)},${CID}_${STIME}.wav, ${START})

[queueinfo]

exten => s,1,Verbose(2, {MEMBERINTERFACE} name {MEMBERNAME} caller ${MMCID})

exten => s,n,Set(FILE={CID}_{STIME}.wav)

exten => s,n,Set(START={STRFTIME({EPOCH},%Y-%m-%d %H:%M:%S)}))

exten => s,n,MixMonitor(/home/normar/server/records/${FILE})

exten => s,n,NoOp(start: ${CDR(billsec)})

exten => s,n,Return(${FILE})

Well, [all-busy] is configuration for managing call on hold. Variables CID, STIME and START are passed to gosub [queueinfo] but they are never changed in gosub. Specifically I need this variable START to be changed. When I use it on hangout, it has the same initial value.
Please help, as I haven’t found any suggestion about this problem anywhere

[david551]

Prefixing a variable with _ doesn’t cause the variable to be shared; all it does is cause the value to be copied when the new channel is created. Shared variables ( https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Function_SHARED ) may be your solution, or you could use global variables or ASTDB.

[vladimir.veljkovic.n]

Works with AstDB!
Thank you for all your help!!!