Creare un guppo come sotto

 
voice moh-group 1
 moh flash:/attesa.wav
 description ATTESATEST
 multicast moh 239.1.1.55 port 2123
 extension-range 10 to 19
 extension-range 20 to 29
 extension-range 30 to 39
 extension-range 40 to 49
 extension-range 50 to 59
 extension-range 60 to 69
Inserire in telephony-service
telephony-service
 moh-file-buffer 256
 internal-call moh-group 1
 moh attesa.wav
 multicast moh 239.1.1.55 port 2123
Inserire negli interni come esempio
Router(config)# ephone-dn 1
Router(config-telephony)#voice moh-group 1