Microtel Series 250 - Manual (Page 23)

PRESET ALL DATA VALUES TO DEFAULT
NOTE: Do not use these sequences unless you are thoroughly aware of the results
which will occur, that is, the resetting of operational data to default values, and deleting
any telphone numbers or delays or other programmed data which may have been
entered by the user.
SEQUENCE 60
[Preset system variables such as delays, message count, ring
count, and fault channel modes.]
SEQUENCE 61 [Presets telephone numbers only.] (All programmed telephone
numbers reset to become 0)
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