How to send a message and make a common phone call with skype?

As we all know, skype can make free calls if both users are getting online. They can chat as long as they want but without paying any penny. That’s probably the main reason why skype gets so many popularities around the whole world.
 However, what if the person who u want to communicate doesn't show up online? What if there is an internet problem occurred in the region that makes you not be allowed to get online? Don't worry, there always are ways out.
 Skype team has solved this problem years ago. They establish cooperation with the worldwide telecom operators that can provides connection through telecom operators, which means that kinds of calls or messages need to be charged by the operators with the same expense as the local phone calls.
 U need to add the phone number first before u make a common call. U can find the number call In your profile revise. Besides, There is a sms choice under the chat box like the pic showed. If u have some thing needed to tell your friends, u can press this button. Maybe tomorrow I can show you with a video.