I have a system running Asterisk 11.2.1 that has had a couple calls between
internal extensions get "stuck open". I didn't catch the verbose
log for the first one, since I generally don't verbosely log to file, but
the second one shows that the call that got stuck was dialed, but the caller
hung up before the called device answered.
This server is running a hotdesking environment, so I am running a GoSub on call
completion (and on termination via the h extension) to handle custom device
states, in order to provide BLF for the user extensions without having to
dynamically update which device the hints are pointing to. If the timing of the
log entries are correct, Asterisk had already determined which device to ring,
and dialed that device (firing off the "on call creation" GoSub to set
the BLF of the called extension to RINGING), but then the calling user hung up
before the GoSub returned.
Is this something with my dialplan logic? Is this some race condition issue
that I've stumbled across? What can I do to fix/mitigate the issue?
Pertinent dialplan of my internal call handling is below:
[hotdesk-outbound] ; call from logged in phones comes here first to set CallerID
and check permissions of logged in user
exten => _X.,1,NoOp()
same => n,Set(LOCATION=${CUT(CHANNEL,/,2)})
same => n,Set(LOCATION=${CUT(LOCATION,-,1)})
same => n,Set(WHO=${HOTDESK_PHONE_STATUS(${LOCATION})})
same => n,GotoIf($[${ISNULL(${WHO})}]?internal,${EXTEN},1)
same => n,Set(${WHO}_CID_NAME=${HOTDESK_INFO(cid_name,${WHO})})
same => n,Set(${WHO}_CID_NUMBER=${HOTDESK_INFO(cid_number,${WHO})})
same => n,Set(${WHO}_OUTBOUND_PERMISSION=${HOTDESK_INFO(permissions,${WHO})})
same => n,Gosub(blf-begincall,s,1(${WHO},INUSE))
same => n,Set(CALLERID(name)=${${WHO}_CID_NAME})
same => n,Set(CALLERID(num)=${${WHO}_CID_NUMBER})
same => n,Goto(users,${EXTEN},1)
[users]
include => internal
[internal]
exten => _1XX,1,Verbose(5,Internal user - ${EXTEN})
same => n,Set(E=${EXTEN})
same => n,Set(USER_LOCATION=${HOTDESK_USER_STATUS(${E})})
same => n,GotoIf($[${ODBCROWS} < 1]?notloggedin)
same =>
n,Dial(SIP/${USER_LOCATION},20,wWU(blf-begincall^${E}^INUSE)b(blf-begincall^s^1(${E}^RINGING)))
same => n,Voicemail(${E}@rsnwo,b)
same => n,Hangup()
same => n(notloggedin),Set(LOGGED_OFF=1)
same => n,Voicemail(${E}@rsnwo,u)
same => n,Hangup()
[blf-begincall]
exten => s,1,Verbose("Beginning of Call - set BLF Custom Device
state")
same => n,Verbose(Updating: ${ARG1} Calls:
${GROUP_COUNT(${ARG1}@activecalls)} Status: ${ARG2})
same => n,ExecIf($[${ARG2} =
RINGING]?ExecIf($[${GROUP_COUNT(${ARG1}@activecalls)} >
0]?Set(DEVICE_STATE(Custom:${ARG1})=RINGINUSE):Set(DEVICE_STATE(Custom:${ARG1})=RINGING)):Set(DEVICE_STATE(Custom:${ARG1})=INUSE))
same => n,Set(GROUP(activecalls)=${ARG1})
same => n,Set(CHANNEL(hangup_handler_wipe)=blf-endcall,s,1(${ARG1}))
same => n,Return()
[blf-endcall]
exten => s,1,Verbose("End of Call - reset BLF Custom Device state")
same => n,Verbose(Updating: ${ARG1} Calls:
${GROUP_COUNT(${ARG1}@activecalls)})
same => n,ExecIf($[${GROUP_COUNT(${ARG1}@activecalls)} >
1]?Set(DEVICE_STATE(Custom:${ARG1})=INUSE):Set(DEVICE_STATE(Custom:${ARG1})=NOT_INUSE))
same => n,Return()
Thank you,
Noah Engelberth
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