How does communication takes place in real time?
Examples of real-time communications include: Voice over landlines and mobile phones. VoIP. Instant messaging (e.g., WhatsApp, WeChat, Facebook Messenger)
What is complex communication?
The term complex communication needs refers to people who cannot cope with everyday communication situations by means of speech alone. It is difficult for them to produce or understand speech. Speech impairment often also involves difficulties with reading and writing.