I understand the difference between imessage and SMS but when I text a friend who always got iMessages in the past, everything I send her is SMS (green) even if we both have wifi. She has an iphone.
I understand the difference between imessage and SMS but when I text a friend who used to receive imessages (blue), my phone shows I'm sending her SMS (green) messages. No longer are they blue. She has an iphone and this happens when we are both connected to wifi. We have both recently updated to ios7. Thanks!
iPhone 4S, iOS 7
