| Subject | English | Chinese |
| comp., MS | Microsoft Exchange Unified Messaging Service | Microsoft Exchange 整合通訊服務 (A service that implements Unified Messaging (UM) capabilities for UM-enabled users) |
| el. | unified messaging service | 统一传信业务 |
| avia. | unified messaging service | 统一传信服务 |
| IT | unified messaging system | 统一消息传递系统 |
| el. | unified messaging system | 统一传信系统 |
| IT | unified messaging system | 统一消息传 送系统 |
| comp., net. | unified messaging system | 统一消息系统 |