It locks the extension to the type of phone that was connected to it before the lock was turned on. Station lock keeps the customer from swapping different types of phones....ie an 8 Button Uni phone with a 30 button phone which would screw up the button programming for both sets. I would love to go one better and have a button lock feature as well.


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"Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about"

Retired, taking photographs and hoping to fly one of my many kites.