> For the complete documentation index, see [llms.txt](https://guide.scamshield.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.scamshield.gov.sg/resources/help-center/call-blocking/how-do-i-know-call-blocking-is-enabled-on-my-phone.md).

# How do I know call blocking is enabled on my phone?

For iOS, **Call Blocking & Identification** setting will need to be switched on for ScamShield.

For Android, ScamShield will need to be setup as **default caller ID & spam app** in the settings.

For more information, please refer to our section on [Setup Call Blocking](/getting-started/setup-call-blocking.md).