Unified messaging Unified Messaging unified messaging Unified messaging unified messaging Unified Messaging (UM) unified messaging English "unified messaging" unified communications unified messaging def. UM Unified Messaging unified messaging unified messaging unified messaging English en:Unified messaging unified messaging Unified messaging Unified Messaging Unified Messaging "unified messaging" Unified messaging unified messaging unified messaging unified messaging unified messaging Unified messaging Unified Messaging Unified Messaging "unified messaging" unified messaging unified communications Unified Messaging unified messaging