call-progress tone

telephony signal

en-GB/ˈkɔːl - ˈpɹəʊɡɹɛs ˈtəʊn/
en-US/ˈkɔl - ˈpɹɑɡˌɹɛs ˈtoʊn/

ক্যাটাগরি:

tone