Skype was a popular internet calling service that many people used for voice and video calls, work meetings and long-distance chats with friends and family. Its distinctive ringing, dialling and hold tones became familiar background sounds of online communication, especially when calls were paused or transferred. Short clips of those tones are now reused in videos and memes to signal waiting, being put on hold or a call that never connects. The sound still works because the pause it represents is instantly recognisable, even for viewers who no longer use Skype regularly.