https://www.bt.com/help/landline/calling-features-and-security/all-about-call-barring
All about Call Barring | Landline | BT Help
Call Barring lets you stop certain types of calls from being made from your phone.
all aboutcall barringlandlinebthelp
https://business.bt.com/help/home/phone-line-and-services/call-barring/
Call Barring help and support from BT Business | BT Business
Help with barring calls on BT Business phone lines, Featureline, ISDN and Cloud Voice Express.
help and supportcall barringbtbusiness
https://helpforum.sky.com/t5/Talk/Last-Call-Barring/td-p/5264520
Answered: Last Call Barring | Sky Community
Apr 29, 2026 - Answered: I want to add Last Caller Barring to my Sky Talk landline, but cannot see how to do it.
last callansweredbarringskycommunity