conferencing
noun /ˈkɒnfərənsɪŋ/
  /ˈkɑːnfərənsɪŋ/
- the activity of organizing or taking part in meetings, especially when people are in different places and use phones, computers, or video to communicate
- web conferencing
 
Oxford Collocations DictionaryConferencing is used after these nouns:- video