sir, we just see what r the requirements which r needed for
a call center agent ,
he/she has to be good at communication skills
he/she has to be good at typing,
he/she has to quick learner,
he/she has to be hardworking,enthusiastic person .

and i have all the above qualities sir,thats the reason u
needed to hire me.

IF U SAY THIS THINGS I AM DAM SURE U WILL GET SELECTED INTO
THE COMPANY.

u want a efficient employees and i can work hard with this 
combination the work will be efficient.

I recieved a call from miss...... from  .....consultancy 
she told me about the job profile its looks very attractive 
and appropraite for my career obejective and the second 
thing i m capable for this position,i can work in 24*7 
invoriment and i have good communication skill and i have 
good typing speed, and in addition i can trouble shoot the 
client problem online.so think i m the best person for this 
position......