Automated Main Distribution Frame

en-US/ˈɔdəˌmeɪdɪd ˈmeɪn ˌdɪstɹəbˈjuʃən ˈfɹeɪm/
en-GB/ˈɔːtəˌmeɪtɪd ˈmeɪn ˌdɪstɹɪˈbjuːʃn ˈfɹeɪm/

ক্যাটাগরি:

main distribution frametelephone exchange