I tried this feature today between 2 accounts and I have some requests for improvements:

• Right now when I make a call, on the other end I receive a notification about the new call request. The other end device should just ring instead. Like a phone, skype and other apps
• I am connected to my accounts on a few devices, Siskin on iPhone, iPad and Beagle on Mac. When I call my account from other account I do not receive any notification or information about incoming call on my iPad or iPhone. Even though Siskin is open and connected at the time of the call. I was away from Mac so my guess is that the call was directed to the Mac connection. All the devices should receive the call notification and ideally all of them should ring for the new call request.