IMac. iMessages, Facetime not send/receive messages
iMac2012 10.10.2
FaceTime Not send. Not receive.
iMessages Not send. Not receive.
iMessages - All contact number not registered with iMessage.
Accounts configured and connected.
iPhone, iPad send/receive.
iMac (27-inch, Late 2012), OS X Yosemite (10.10.2)