Hi, We have a MoH problem. When we place a call internally direct from Phone to Phone or a call from external over a CTI routepoint thru an IVR to a phone MoH works fine. In the Wireshark trace you could see following message for starting multicast "StartMulticastMediaReception".

But when we make a internal call from one phone over a CTI route point thru an IVR to a phone then we get no music on hold. In this case the Wireshark message for starting Multicast is different "StartMediaTransmission".

Thank`s

Martin