On the other day i had a call from call-center and that guy was speaking like a freak with his mother tongue accent. He often used the word “sir”, this thing annoys the english people. Instead of “sir” he could have used the word “mate”. I think everyone who’s going for a call center interview should learn to say “mate”. “Mate” is pronounced as “meyt”. Good luck in u r interviews and dont forget to say “cheese mate” for thank you.