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