call-in

call-in
ˈcall-in noun [countable]
American English a radio or television programme in which people telephone to give their opinions
   SYN  phone-in British English:
    a call-in talk show

call-inBrE /ˈkɔːl ɪn/ 🔊NAmE /ˈkɔːl ɪn/ 🔊 (NAmE) (BrE ˈphone-in) nouna radio or television programme in which people can telephone and make comments or ask questions about a particular subject （广播或电视的）热线直播节目，听众来电直播节目