Dear,

Call centers need people with a natural ability for customer service, good listening skills, effective communication skills, an excellent memory, and an enthusiastic attitude. It's the intangibles like enthusiasm and ability to listen that often make the best employees.
To get a job in a call centre you should develop fluency in languages. Call centre and telemarketing jobs rely majorly on how well you can speak to and understand your customers. Build computer literacy. Build conversational and communication skills. Get work experience in sales. Obtain required professional certifications.

Hope this helps!