| Subject | English | Portuguese |
| commun. | connection-oriented communications | comunicações CO |
| commun. | connection-oriented communications | comunicações orientadas para a conexão |
| commun. | connection-oriented service | serviço orientado à conexão |
| commun., IT | connection-oriented transmission | transmissão orientada à conexão |
| comp., MS, Braz. | synchronous connection-oriented | por conexão síncrona (Pertaining to a Bluetooth data link type which is a symmetrical, circuit-switched, point-to-point connection between a master device and a subordinate device, primarily used for voice traffic) |
| comp., MS | synchronous connection-oriented Pertaining to a Bluetooth data link type which is a symmetrical, circuit-switched, point-to-point connection between a master device and a subordinate device, primarily used for voice traffic | SCO (Synchronous Connection-Oriented) |