Blocking Unwanted Numbers

You can block numbers of unwanted callers.

If you have received a voicemail from an unwanted caller, tap on the number
in the voicemail bubble and select Block Number

You can also block a number from the Contact Info screen, Chat Info screen,
or Call Info screen. Access any of these screens for the unwanted number,
navigate to the options menu, and tap Block Number

Figure 1: iOS

Figure 2: Android