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How do you program to block a number?

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GuardianTelecomAdmin

Technical User
Sep 14, 2006
8
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US
There is this 4 digit extension number and an outside number keeps calling it. How do we block calls from outside? How do we program it? What are the commands? Thanks for all the help.
 
You can change the COS of the phone.
If FNO 335 is not in it's COS, it cannot receive DID (or DNIS) calls.
 
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