Are E-mails better than ordinary calls?

E-mails have become very popular over the last few years, but many people are not sure if they are entirely good thing.
On the one hand, text messages are both faster and cheaper to send because they are shorter. You can also leave messages for people if they can't answer their phone immediately, and this is very important in today's busy world. Also a lot of people dislike speaking on the phone, especially shy people. They often feel uncomfortable and can't think of anything to say. E-mails are easier to use because you have time to plan exactly what you want to say. You can also think of the best way to say it.
On the other hand, feelings are very important in communication. When you speak to someone, you can hear how that person feels. You can also guess if they are telling the truth or not. It's very difficult to understand a person's real emotions in a text message.
In conclusion, text messages are useful for short and simple information, but ordinary phones are better for real communication.