If *80 does not work, try dialing just *60 . The automated system may have an option to “review,” “add,” or “delete” blocked numbers.
Let’s address each scenario.
Follow the automated voice prompts to "review" your blocked list. how to unblock landline phone number
Many modern cordless phone systems (Panasonic, VTech, AT&T DECT 6.0) have a built-in button. These blocks are stored locally in the handset, not at the carrier level. If *80 does not work, try dialing just *60
Most major landline carriers (such as AT&T, Verizon, and CenturyLink) use "Star Codes" to manage call blocking. This is the quickest way to fix the issue if you are using traditional phone service. Follow the automated voice prompts to "review" your
Most traditional landline providers (Verizon, AT&T, CenturyLink, Xfinity Voice, etc.) use a standard set of star codes to manage their “Selective Call Rejection” or “Call Block” feature.
Scroll to find "Call Block" or "Block List" and press Select .