How does the 4 ranks work?

Hi, Has anyone noticed how long your Android phone keeps a missed or received call in its history? I though they were saved there for like eternity until I just recently noticed that a missed call I had from a month ago no longer shows up in my history. Is it possible to extend your android phone's call history? I didn't find the right solution from the internet. References:  https://www.androidpit.com/forum/432891/how-long-is-your-phone-s-call-history Marketing Automation Examples

Hi, Have you ever wondered why that little moisture sticker under the battery cover turned pink? It's possible this happened because of steam or extreme humidity. Steam from a shower would be more likely though. Luckily most insurance covers water damage, but they didn't used to, which is why this little sticker exists. Can steam from a shower actually damage your phone? I didn't find the right solution from the internet. References:  https://cellphoneforums.net/general-cell-phone-forum/t356839-can-shower-steam-damage-cell-phone.html#axzz53smHxCuR Project Management Marketing Examples

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