Nope; if you have a device in people's houses you basically have to configure them to pull. NATs and other connectivity tricks mean they can reliably initiate communication with you but not the other way around.
I'm intimately familiar with the relevant issues. That the client initiates the connection does not make it "pull", you're confusing distinct issues. Push is almost always implemented with long-lived connections initiated by the client side which remain idle save for periodic keepalives until there is actual data to transmit.
