Playing MOH in queues while all agents r busy

Deal All

Is there any way to play MOH in queue for new incoming call … while all agent are busy .

My sample configuration is as under…

Extensions.conf

exten => 1,1,SetMusicOnHold(default)
exten => 2,2,Queue(ali)
exten => 3,3,Hangup 

Queues.conf

[ali]
music = default
strategy = rrmemory
timeout = 1
retry = 1
announce-frequency = 1
announce-holdtime = no
member => SIP/3001

Regrads
ali