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Automated Main Distribution Frame

Automated Main Distribution Frame

en-US/ˈɔdəˌmeɪdɪd ˈmeɪn ˌdɪstɹəbˈjuʃən ˈfɹeɪm/

en-GB/ˈɔːtəˌmeɪtɪd ˈmeɪn ˌdɪstɹɪˈbjuːʃn ˈfɹeɪm/

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main distribution frame telephone exchange