How can I tell if someone has read a message i left for them

[AC Question]

Ineed to know when I leave a message for someone how can I tell if they read it or not, and O need to know right away

 

[hallux]

Duplicate message? I provided an answer in the thread below.

http://forums.androidcentral.com/ask-question/780964-how-tell-if-message-tead.html