Telephone set automatic registration method and telephone set for realizing same
An automatic registration and telephone technology, applied in the field of telephones, can solve problems such as cumbersome processes and achieve the effect of saving manpower
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[0034] Such as figure 1 As shown, the telephone set described in this embodiment has a main control unit 14 with a central processing unit CPU chip inside the telephone set, and a reset circuit 1 is also connected with the main control unit. After 13, first initialize and reset through the reset circuit, the phone also includes a keyboard scanning circuit 3, EEPROM data storage circuit 4, ringing, ringing detection and ringtone control circuit 5, incoming call receiving CALL circuit 6, hook switch detection and switching circuit 7. Liquid crystal (LCD) display circuit 9. These circuits above belong to the existing conventional technology in ordinary telephone sets, especially push-to-talk sets, and this example will not be described in detail here. The present invention is characterized in that the telephone further includes:
[0035] External line detection circuit 2, the circuit detects that the phone has been plugged in by an external line through the voltage test of the a...
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