How to block, mark as spam, or unblock phone numbers on Infinix devices

Infinix Smart3 Plus Infinix Smart3 Plus
Infinix Zero 5 Infinix Zero 5
Infinix Zero 5 Pro Infinix Zero 5 Pro
Infinix Note 5 Stylus Infinix Note 5 Stylus
Infinix Note 5 Infinix Note 5
Infinix Note 4 Infinix Note 4
Infinix Note 4 Pro Infinix Note 4 Pro
Infinix S3X Infinix S3X
Infinix Hot S3 Infinix Hot S3
Infinix S2 Pro Infinix S2 Pro
Infinix Hot 6X Infinix Hot 6X
Infinix Hot 6 Pro Infinix Hot 6 Pro
Infinix Hot 6 Infinix Hot 6
Infinix Hot 5 Infinix Hot 5
Infinix Hot 5 Lite Infinix Hot 5 Lite
Infinix Smart 2 Pro Infinix Smart 2 Pro
Infinix Smart 2 Infinix Smart 2
Infinix Smart Infinix Smart