Anonymous1 For iPhone users, here are a few links detailling how to block calls and sms. Keyword used: 'iPhone Call and SmS Blockers' on Google. Hope it helps. https://www.digitaltrends.com/mobile/how-to-block-calls-on-an-apple-iphone/ https://www.macworld.co.uk/how-to/iphone/block-number-iphone-3457215/ https://www.macrumors.com/how-to/block-nuisance-calls-messages-iphone/ https://www.imore.com/how-block-spam-calls-your-iphone https://appleinsider.com/articles/18/04/19/how-to-block-and-filter-phone-numbers-on-your-iphone-with-the-tools-in-ios https://mashtips.com/ios-apps-block-calls/