Hello Sasha
I work in Hr Department and continually recruitment for our large call centre. After CVs have been reviewed for suitable candidates - the first stage is a short telephone interview. I ring them in advance to arrange a convenient time to call them back - it is a good idea to have your CV ready when they call you - I usually ask them to tell me a bit about themselves, what they have done previously and why they are applying. I tell them ab out the role and ask if this is what they are wanting to do, this gives you the opportunity to tell the company what your expectations, concerns etc are. This gives us as the company an opportunity to hearing what you sound like over the phone. Then (later not at the telephone interview) I ring them to arrange a face to face interview at our company. This last approx 30 minutes. Again go through the role see if you fit our criteria etc. Sometimes we do numeracy and spelling tests depending on the roles. Think - this is also your opplortunity to find out about them. be knowledgeable anout the company but ask about benefits, staff progression, training, appraisal system etc.