ELI5: Explain Like I'm 5

H.323

H.323 is a type of computer network protocol. It's used to make sure computers, phones and other devices can send information back and forth over the internet. By having the same type of protocol, it's like having a common language so computers can speak to each other. H.323 helps make sure that the audio, video and other data that are sent and received are properly sent and received with no delays or interference.