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1 Message

Fri, May 4, 2018 9:11 PM

rejects *77and #77 inputs.

my traditional landline gives busy signal when *77 or #77 are entered on keypad.  how to activate anonymous call blocker?



ACE - Master


7.9K Messages

2 years ago

Getting a busy on *77 could indicate it's already set.  #77 isn't a valid star code on traditional landline service. You could do *87 to release the feature, than *77 to turn it back on if you want to see if it's already set.  Valid codes can be found on the right side of this page under Home Phone Hot Topics. 

This is a user to user help forum. It is not an AT&T support site. I am not an AT&T employee, read the ACE's disclaimer at the bottom of this post

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