MOH configuration on CME

“ip pim dense-mode” on loopback or Gig interface is mandatory.
interface Loopback0
ip address 10.1.1.2 255.255.255.0
ip pim dense-mode
!

interface GigabitEthernet0/0

description ########## connected to Core Switch 1 #########
ip address 161.91.228.11 255.255.254.0
ip pim dense-mode
duplex auto
peed auto
h323-gateway voip bind srcaddr 161.91.228.11
!

moh "music_on_hold.wav"
multicast moh 239.1.1.10 port 16384 route 161.91.228.11 10.1.1.2



Ref -

http://ieoc.com/forums/t/13074.aspx

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/feature/guide/MoH.pdf