Why can't I get texts form some iPhone users?

[AC Question]

I can get texts from every one of my friends except one that uses an iPhone. Is it a setting on my phone or his. He can receive texts from me no problem. What is wrong?

 

[B. Diddy]

Welcome to Android Central! Did you ever use an iPhone yourself? If so, did you remember to completely deactivate iMessage and remove your phone number from their server before switching to Android? This is a well-known issue: Issues with texts after moving to Android from iPhone? Here's an easy fix! | Android Central

 

[Rukbat]

If you're receiving texts from other iPhone users, tell that one to check "SMS" the next time he sends you a text. That's another known issue. (Even if you deactivated iMessage, an iPhone sends iMessages by default, and an Android phone ignores them.)