Today, its not just sufficient to just offer good products, you also have to take the responsibility of good post selling service and customer service.Now-a-days every company and service provider has a dedicated team just for the customer service wing.Customer service has become very vital and an important factor in deciding the overall success of an organization in the long run.That is why more and more companies of late have realized the importance of customer service and have started making efforts to give the best service to their customers.Customer service can be broadly classified as voice service over telephone calls and the written service over e-mails or less frequently via the snail mails.The latter is not that popular these days.There are some basic skills and requirements so as to make it as a good customer service personnel.Since, all the conversation happens over the telephone, you have just your voice and tone to impress them.you need to understand that they are human beings and tend to behave like animals occasionally.SO, when they are angry and yelling out at you, it means you need to be patient and try to find a solution for them rather than giving them back.After all, they don’t intend to hurt you personally.