I cannot find the right, generic term for all the applications and software used for making online calls (i.e. Skype, Zoom, Facetime, Jitsi, etc.).
I found such word collocations as telecommunications application, online call software and videotelephony software.
What would be the best form for the technically untutored English-speaker's ear?
The context - a manual helping to set up the hardware for making video conference calls.