| English | Estonian |
| busy signal | kinnine toon (The indication that the phone is busy) |
| cellular signal | mobiilsidesignaal (The signal between a cellular phone and the mobile operator's network that allows the user to access the Internet and make phone calls using a cellular phone. A telecommunications standard that lets users send and receive messages that include rich text, images, audio, and video) |
| production signal | tootmismärguanne (A documented notification of a resource flow event that triggers a production or transfer activity) |
| signal event | signaaliteade (In a statechart or activity diagram, an indication that one object has received a signal from another. A signal can be declared by using the keyword signal on a class in a class diagram) |
