Why do iPhone messages come up as picture messages on other phones?

When my friend sends me texts, she has an iphone, they come up as picture messages and i can't revieve them on my phone because my plan doesn't cover picture messages. Can she change the settings so it won't come up as a picture?

I've noticed that happens when the sender sends to more than one recipient. Texts sent only to you should work fine.

It sounds like a problem on your phone, not the sender. Just a guess.