| Subject | English | Korean |
| comp., MS | Microsoft text telephone | Microsoft 문자 전화 (A device that enables the transmission of typed messages over phone lines. These devices typically include keyboards for typing messages to send and display and/or printers to receive messages from one device to another) |
| IT | plain old telephone service | 기존전화서비스POTS |
| IT | public switched telephone network | 공중전화망PSTN |
| comp., MS | public switched telephone network | 공중 전화망PSTN (Public switched telephone network (PSTN) is used by standard analog telephone lines, available worldwide) |
| comp., MS | telephone device for the deaf | 청각 장애인을 위한 전화 장치 (A device that enables the transmission of typed messages over phone lines. These devices typically include keyboards for typing messages to send and display and/or printers to receive messages from one device to another) |
| comp., MS | telephone typewriter device | 문자 전화기 (A device that enables the transmission of typed messages over phone lines. These devices typically include keyboards for typing messages to send and display and/or printers to receive messages from one device to another) |
| comp., MS | Telephone User Interface | 전화 사용자 인터페이스 (An interface that is used to navigate the menus of a Unified Messaging (UM) system using DTMF or touchtone inputs) |
| comp., MS | text telephone | 문자 전화 (A device that enables the transmission of typed messages over phone lines. These devices typically include keyboards for typing messages to send and display and/or printers to receive messages from one device to another) |
| comp., MS | UM access telephone number | UM 액세스 전화 번호 (A telephone number that points to a hunt group and is the access number for calls that are routed to Unified Messaging servers) |