Well I am going to be the odd ball here I guess!! I don't find phone sex cheating nor do I find web cam cheating, or cybering cheating. I know most people would find this emotional cheating, in my opinion it isnt cheating as long as your partner knows, and it isnt something that you are hiding.
Maybe I am just a little more accepting then most people on certain things. I have always been pretty open, in my opinion to be honest I dont even find it to be emotional cheating, that is if you still are in love with your SO and your sex life is still healthy and enjoyable, if it isnt then one you should be doing phone sex or anything else since there are more important issues playing a role at home, that need to be handled.
I believe that if you are secure in your marriage or relationship, that anything that isnt physical contact, phone,cybering,web cam etc.. is not a form a cheating.
Just my opinion though. Have I been with someone who has done this, yes did it bother me no since guess who got the ultimate physical contact ? ME !!!! | 
