Here’s a carefully worded informational text regarding downloading a dialer APK for Android 4.2.2 (Jelly Bean). It includes important compatibility and safety notes, as this version of Android is very old and no longer supported. If you’re using a device running Android 4.2.2 and need a new or replacement dialer app (phone app), you may need to manually download an APK file. Most modern dialers from the Google Play Store require Android 5.0 or higher.
If you just need basic calling, the built-in “Phone” app on Android 4.2.2 is still the safest and most stable option.