Default dose most of all custom rom have no video call

i have try some rom from xda, but i like sokp rom from all of them, is has good battery life and better response,
but there is no video call, now i am going outstation and i want to make video call to my family, for that i have to flash stock rom and all apps i need, so is there any way to add video call option.
and i know about hangout, tango and other video chat app, but they took long time to send video to other side, not like video call that send video immediate,