Anunaki
I was never sent an email with dates and times they would call me, only to keep my phone available afterwards. They called me at 7.40 in the morning, I was sleeping and they woke me up.. So if they give you specific times, cool, if they don't, just keep your phone with sound at all times.
I also told them I worked at the airport and in the ramp phones are not allowed in the case of I would not be able to answer, and to leave a voice message.