Double Boucle
Two curly loops, which represent a reel-to-reel tape recorder. Used as a symbol for voicemail on many phones.
A variation of this logo is used by Free Dial, a toll-free telephone number by NTT in Japan.
Double Boucle a été approuvé dans le cadre de Unicode 6.0 en 2010 et ajouté à Emoji 1.0 en 2015.