What do you do if your phone rings during an interview?
First of all, it is important to catch your initial reaction. DO
NOT curse in front of the interview panel.
Then, turn the phone off as quickly as possible and apologize.
Say "Oh, I am so sorry" and move on. Don't dwell on it. Don't make
a million excuses. If you had to leave the phone on because your
grandmother is in the hospital you should have told them when the
interview started. And they don't want to hear that this never
happens to you, because it obviously just did.
Continue the interview as if nothing had happened. Don't let it
throw you off. ---- Secondly, turn your phone off before you enter
the interview.