| Subject | English | French |
| commun., IT | community antenna relay service | système de télédistribution à micro-ondes |
| commun., IT | community antenna relay service | système hertzien de télédistribution |
| commun., IT | community antenna relay service | système de télédistribution à hyperfréquences |
| commun. | frame relay service | relais de trames |
| comp., MS | Microsoft CRM Mobile HTTP Relay Service | Service de relais HTTP Microsoft CRM Mobile (A service that is installed and started on the Microsoft CRM server that relays device-initiated Web requests to a Web service running in the intranet) |
| commun. | radio-relay system service channel | voie de service du faisceau hertzien |
| earth.sc., el. | service relay | relais de servitude |