A private branch exchange (PBX) (or network hosted device) is described herein that is capable of obtaining information (e.g., in-a-conference presence state) that indicates a user is participating in a multi-party conference call which is being hosted by an external conference/collaboration bridge and is further capable of disabling a music-on-hold feature on an extension associated with a device belonging to the user such that if the user places the device on-hold then no sound (e.g., music, radio) will be injected into the multi-party conference call.