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Go On Hook
(Hang up the telephone handset)
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4 |
3 |
2 |
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Flash |
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5 |
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1 |
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4 is dialed |
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6 |
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7 |
8 |
9 |
0 |
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Once dialing 4 and letting go of the
dial, it spins to the normal position. This action causes
the the dial to open and closes the line loop four times causing
the first selector switch in your central office to make four
vertical steps.
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