Unable to make calls thru WIFI
Several months ago, I was able to make and receive calls through my MAC/Ipad via my wifi on my iPhone. Now, I am unable to do so. The message I keep getting is that all devices need to be on the same wifi which they all are. I haven't done anything different, no changes to my router. I am using OS X Yosemite 10.10.4 if tis helps. I don't have this problem with my iPhone and work IPAD when Im at work.
Can anyone help me?? Thank you in advance!
MacBook Air (13-inch, Early 2014)