Answer
Suppose a new technology makes video calls easier and more affordable for banks, allowing them to place "virtual tellers" in all ATM machines. If this happens, we would expect the DEMAND to INCREASE causing the salaries for remotely located customer service representatives to INCREASE.
Since the new technology is easier and more affordable then the demand for such service will surely be on the rise. This translates to an increase in the demand. The remotely located customer service representatives in charge of the virtual service will also get a higher salary.