Hello atnt users!

 

I was just wondering if anyone knows how the Iphone messaging work

 

I am getting an upgrade today and already have unlimited text messaging on my plan. I’ve had this for 2 years now. Do I have to add the Iphone messaging plan (20 for unlimited each month), in order to text message. Can I send MMS with my current unlimited text messaging plan, or do I need to get the Iphone messaging plan? 

 

Thank You!