De or het videoconferencing?

The correct Dutch article is:

de videoconferencing

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) technologie waarmee mensen op verschillende locaties via internet live in beeld en geluid met elkaar kunnen communiceren, vaak aangeduid als videobellen of virtueel vergaderen.

How to use videoconferencing

the videoconferencingde videoconferencing
this videoconferencingdeze videoconferencing
that videoconferencingdie videoconferencing
our videoconferencingonze videoconferencing
your videoconferencingjouw videoconferencing
every videoconferencingelke videoconferencing
which videoconferencing?welke videoconferencing?
a big videoconferencing / the big videoconferencingeen grote videoconferencing, de grote videoconferencing

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).