I picked up this article:
Top Reasons to have a skype video call with your cat
We were not at all surprised to hear that a recent poll, conducted by Hallmark, showed that one out of three cat owners use Skype to contact their beloved felines. Based on the number of cat photos our users share with us, we figured human-cat Skype calls were some of the most common types of video calls out there.This didn’t surprise Skype’s Pet Ambassador, Paris Permenter, either. “I think Skype is an easy way to check in with cats because they’re so predictable,” she says. “You know where they’re going to be – if they’ve got a favorite napping spot or a sunny window sill, you can point the camera there and check in on them throughout the day – it’s easy to catch them there. You don’t have to call them to the camera, you just know where they’re going to be.” She’s experienced this with one of her four cats, Inca. “She always lies in one window, and I know she’s going to be there, taking a sunbath.” Oh, for the life of a cat.
https://blogs.skype.com/stories/2014/06/20/top-reasons-to-have-a-skype-video-call-with-your-cat/
And what about cat to cat skype calls...why not?