autodial
au to di al |ˈôtōˌdī (ə )l ˈɔtoʊdaɪəl | ▶noun a function of telephonic equipment that allows for automatic dialing of preprogrammed or of randomly selected numbers: have a telephone with autodial by your bed. ▶verb ( autodials, autodialing, autodialed; Brit. autodials, autodialling, autodialled ) automatically dial a telephone number, with or without human prompting: [ no obj. ] : it had autodialed and been online for over 2hours | [ with obj. ] : if the first number is busy the modem autodials the backup number.
autodialer
au to dial er |ˈôtōˌdī (ə )lər ˈɔtoʊdaɪələr | ▶noun an electronic device that dials telephone numbers randomly or from a list and may also leave messages and request information.
auto |dial |ˈɔːtə (ʊ )dʌɪəl | ▶verb ( autodials, autodialling, autodialled; US autodials, autodialing, autodialed ) [ no obj. ] Computing (of a modem ) automatically dial a telephone number or establish a connection with a computer. DERIVATIVES autodialler noun