Direct Outward Dialing-Two DOD2

基本解释直拨外线---听二次拨号音(PBX分机)

网络释义

1)Direct Outward Dialing-Two DOD2,直拨外线---听二次拨号音(PBX分机)2)Direct Outward Dialing-One DOD1,直拨外线---听一次拨号音(PBX分机)3)Secondary Dial Tone,二次拨号音4)direct Outward Dialing (DOD),[分机]直拨外线5)secondary dialing,二次拨号6)Listen for a dial tone,监听拨号音

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