[custom-test-play-with-conditional]
;We are going to try and write to the Asterisk database if this is the first call.
exten => s,1,GotoIf(DB_EXISTS(voicemail/${DNID})?1000:2)
exten => s,2,wait(2)
exten => s,3,playback(mainmenu-custom)
exten => s,4,Set(DB(voicemail/${DNID})=activated)
exten => s,5,hangup

exten => s,1000,wait(2)
exten => s,1001,VoiceMailMain(2957@default)