Callback on busy/unavailable when blind transfer

My suggestion: if user has voicemail, it should go there. If user has no voicemail, we might consider this a bug, we should do something with the call if it came from a blind transfer and no voicemail to take the call. Probably best to treat this similar to the Operator extension. Give 2 options configurable. Either send back to the channel that made the call, or send it to some defined 'operator' extension (or the defined operator extension).

(note - I don't think it should be an optino to avoid voicemail on busy during a blind transfer. If the user cares for it to not go to voicemail, they should do an attended transfer.)

The suggestion sounds great (ie. if no vm and it's a blind transfer and ext is busy/unavail then call back extension that did the transfer OR send to a custom-context).

Are there any plans to implement this or are there any work-arounds already?

Thank you

In extensions.conf I just tested the s,12 line below and defined a custom context and it seems to work fine for now. I'm sure that FreePBX can handle blind transfers a lot better.

[macro-dial]
exten => s,1,GotoIf($["${MOHCLASS}" = ""]?dial)
exten => s,2,SetMusicOnHold(${MOHCLASS})
exten => s,3(dial),AGI(dialparties.agi)
exten => s,4,NoOp(Returned from dialparties with no extensions to call and DIALSTATUS: ${DIALSTATUS})

exten => s,10,Dial(${ds})                               ; dialparties will set the priority to 10 if $ds is not null
exten => s,11,Set(DIALSTATUS=${IF($["${DIALSTATUS_CW}"!="" ]?${DIALSTATUS_CW}:${DIALSTATUS})})
exten => s,12,GotoIf($[${LEN(${BLINDTRANSFER})} > 0]?custom-MANAGE_LOST_TRANSFERS,s,1)

A better solution which doesn't interfere with follow-me's is:

extensions.conf:

last lines of [macro-exten-vm]:

; Extensions with no Voicemail box reporting BUSY come here
exten => s-BUSY,1,NoOp(Extension is reporting BUSY and not passing to Voicemail)
; This should recover failed transfers.
exten => s-BUSY,n,GotoIf($[${LEN(${BLINDTRANSFER})} > 0]?custom-MANAGE_LOST_TRANSFERS,s,1)
exten => s-BUSY,n,Playtones(busy)
exten => s-BUSY,n,Busy(20)

; Anything but BUSY comes here
; This should recover failed transfers.
exten => _s-.,1,GotoIf($[${LEN(${BLINDTRANSFER})} > 0]?custom-MANAGE_LOST_TRANSFERS,s,1)
exten => _s-.,n,Playtones(congestion)
exten => _s-.,n,Congestion(10)

extensions_custom.conf:

[custom-MANAGE_LOST_TRANSFERS]
exten => s,1,Answer()
exten => s,n,Playback(please-wait-bouncing-back)
; Supposing there are 4-digit extensions here - no error checking
exten => s,n,Set(RETURN_EXT=${BLINDTRANSFER:4:4})
exten => s,n,Goto(from-internal,${RETURN_EXT},1)
exten => s,n,HangUp()

Would be nice to have something more robust within FreePBX.

continued in #1972