ONLY INSTALL IF YOU CAN HANDLE FILZA . 

the dialers will be put into the path var/mobile/Documents after the download. from there you have to insert the right phone dialer into the path and replace it with the right folder. CHANGES FIRST THE NAME OF YOUR RIGHT TELEPHONYUI- ORDER IN (OLDTelephonyUI-7) it may have a different number than the end number depending on the country. Name my folder exactly as your name is . for eclipse users please use the eclipse dialer . 

the paths are these

Passcode Dialer UI Themen 

-var/mobile/library/caches

Telephone Dialer theme

• var/ mobile /  Containers / Data / Application / phone / Library / caches / 
• For iOS 11 User Rename  the folder to TelephoneUi-4

inCall Dialer 

-var/ mobile /  Containers / Data / Application / InCallService / Library / caches / 

for the InCall dialer you use the normal Phone dialer, pay attention also here to eclipse and not eclipse user

Before you insert the new folder, rename the original folder to OLD TelephoneUi-7