23) What would you do if the system was not working and the client still needed to be on duty? During the call, if the system is down, you should ask the customer to wait a moment if the power has not been restored. First, you should try to solve his/her problem with your knowledge. Then you need to apologize for the inconvenience. Then you should ask him or her to call back or write... https://www.thphonenumbers.com/iceland-mobile-numbers