Is it right for an engaged couple to talk (about physical relations) before getting married so that they may ease out difficulty?

Is it right for an engaged couple to talk (about physical relations) before getting married so that they may ease out difficulty?

Dear Brother / Sister,

Affiance is not a marriage agreement, but it is a marriage promise. For this reason, those who engage are foreign to each other and they can not be together unless there is their mahrams (so closely related by blood that marriage with him/her is forbidden). For this reason, even if they are engaged, it is not permissible for them to be together, to look at the private parts of them which are forbidden and to touch each other. And they should pay attention to their speeches.
They have to be careful on some cases when the engaged couples talk to each other on the phone, msn etc...
For example, if they talk about love, gossip, lie, and about any thing that wakens the sexual desires etc... It is absolutely not true.
However, if it is about religious matters that reminds Allah, death, afterdeath and religious feelings and thoughts, certainly it cannot be said that it is forbidden. The criterion should be as mentioned. When you acct in those criterions, we can say that you do not commit sin and you protect yourselves. Also, we advise you to ask your conscience about what you do. If your conscience is not comfortable, give up what you do.  

How should engagement and the period of engagement be? What should the criterion for the engaged couple to meet each other be?

What are the Significant Points in the Relations Between Man and Woman?

Questions on Islam