Why does my iPhone 4 in FaceTime settings not show the availability of cellular use?

[iMore Question]

On my iPhone 4 I can use FaceTime only when I am on wifi. I cannot link it with my cellular date package. When I go into Settings and then FaceTime there is no provision showing to connect it to cellular date use.

 

[mumfoau]

Welcome to iMore!

Unfortunately, to use FaceTime over cellular one must have an iPhone 4S or later.

Source: https://support.apple.com/en-us/HT204380