How to become an effective Customer Service Specialist?

Be True and When you are on a duty of customer service.then during deal with customer think yourself as a customeron every step.

Always have the mindset of "the customer is always right" and you will more often get along well with customers..

Make it a habit of listening to the customer properly,  solve the issues in consultation with your senior and respond before he/she calls you again..

Basically, know what the customer needs and wants. After knowing it, in line the SOP of your service.