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Toll-free telephone number
/tˈəʊlfɹˈiː tˈɛlɪfˌəʊn nˈʌmbə/
/tˈoʊlfɹˈiː tˈɛlɪfˌoʊn nˈʌmbɚ/Toll-free telephone number
01
무료 전화번호
a phone number with a distinct three digit code that is free of charge for the calling party
/tˈəʊlfɹˈiː tˈɛlɪfˌəʊn nˈʌmbə//tˈoʊlfɹˈiː tˈɛlɪfˌoʊn nˈʌmbɚ/
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