custom parking lot

exten => 74,1,Answer
exten => 74,n,Set(PARKINGDYNAMIC=700)
exten => 74,n,park()
exten => 74,n,hangup

[parkedcallstimeout]

exten=>s,1,Set(CALLERID(name)="PARKED CALL")

exten=>s,2,Dial(SIP/100&SIP/102,60)

same=>n,Set(PARKINGDYNAMIC=700)

same=>n,park(,,,,s)