Phonegap Push Notification

Hello Sir,
I want to try send Push notification on IOS using but it’s not working.
Accoring to DOC i install plugin and build IOS APP using
In that i add plugin in confix.xml file and package.json file also but ‘push.on(‘registration’,function(){})’ event not working.
So please provide me how i config code for Phonegap.

Which documentation are you referring to?

Documentation doesn’t say anything about Phonegap Build.