Так, я короче не понял слова перефонного и поэтому отвечу на телефонный
pluses:
1) you can talk with your friends if they are far away from you.
2)You can give to your friend your emotions about something
minuses:
1)some times it costs money
2)it s more better when you talk with your friend in a cafe or restaurant
дальше сам(а)