Prepared for: General User Guidance Date: [Current Date] Subject: Methods to remove a number from a landline’s block list 1. Executive Summary Landlines (both traditional copper/POTS and digital/VoIP) allow users to block unwanted numbers. Unblocking reverses this, restoring the ability to receive calls and messages from a previously restricted number. The exact method depends on the landline type (traditional corded/cordless, VoIP, or virtual landline) and whether the block was made via the phone’s built-in features or a carrier’s online portal. 2. Methods by Landline Type | Landline Type | Typical Unblock Method | Notes | |---------------|------------------------|-------| | Traditional corded/cordless (POTS) | Dial *80 (or specific code) to re-enable a previously blocked number that was blocked via call blocking features like *60 . | Check your phone manual; *80 is common but not universal (some use *82 to unblock for a single call). | | VoIP landline (e.g., Ooma, Vonage) | Log into the provider’s online dashboard or mobile app → Call blocking/blacklist → Remove the number. | Some VoIP phones have a physical button; unblock via the device menu under “Blocked Calls.” | | Digital landline from cable/ISP (e.g., Xfinity Voice, Optimum) | Use the provider’s call blocking/unblocking feature in the account portal or phone app. | May also be accessible via *60 (block) and *80 (unblock) if the provider supports vertical service codes. | | Virtual landline (e.g., RingCentral, Grasshopper) | Admin portal → Call logs or block list → Delete number from blocked list. | Unblocking may require a license with call management permissions. | 3. Step-by-Step: Traditional Landline (Using Vertical Service Codes) Most traditional landlines use Vertical Service Codes (VSCs) for call management: