What is textual harassment?
Textual harassment is using a mobile phone to repeatedly send unsolicited text messages to another person. The text messages may be a form of sexual harassment, abuse, or bullying via text.
What is sexting?
Sexting is sending sexually explicit messages via cell phone or instant messenger.
Reference:
http://www.webopedia.com/TERM/T/textual_harassment.html
http://www.webopedia.com/TERM/T/textual_harassment.html