i need some help with my iphone 4 please

[iMore Question]

will not ring or alert for text only vibrates even when i turn off vibrate. i cant get music to download that i bought from itunes. i need to know how to recieve tty calls as i am deaf. i use cochlear implants.

 

[Just_Me_D]

Check out the information via the following link.

https://www.apple.com/accessibility/iphone/#mn_p