The feature that no smartphone had/has.
My Ericsson T68 could do them. But, at € 0,70 a minute and being dependent upon the other caller and their network supporting it, it was too expensive to do. Even with ubiquitous VoIP and larger pipes I still almost never do video calls. I guess it was the blockchain / VR of its day: required lots of expensive technology but was really little more than a gimmick.
Biting the hand that feeds IT
