Here you can find instructions to make video calls on HTC devices

HTC Desire 820s HTC Desire 820s
HTC Sensation XE HTC Sensation XE
HTC Butterfly 2 HTC Butterfly 2
HTC Desire 816G HTC Desire 816G
HTC One M9+ Supreme Camera HTC One M9+ Supreme Camera
HTC Bolt HTC Bolt
HTC Evo 4G HTC Evo 4G
HTC Desire 626s HTC Desire 626s
HTC Panache HTC Panache
HTC Butterfly HTC Butterfly
HTC Status HTC Status
HTC One (E8) HTC One (E8)
HTC Desire X HTC Desire X
HTC Desire 210 HTC Desire 210
HTC Desire 520 HTC Desire 520
HTC Tattoo HTC Tattoo
HTC One ME HTC One ME
HTC One SV CDMA HTC One SV CDMA
HTC Desire 516 HTC Desire 516
HTC Sensation 4G HTC Sensation 4G