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Step 1 | Step 2 |
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Navigate to the Setup/Function Keys page:
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Step 3 | Step 4 |
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Insert the "*1*" string in the third column: These DTMF activate the transfer mode. | Act the same way for another dial button (i.e. P4) but this time insert the "*3*" DTMF train: this one activates the "3-way call" |