Answer:
By answering more phone calls but providing worse service, you ARE being EFFICIENT but NOT SATISFY CUSTOMERS' NEEDS.
Step-by-step explanation:
A worker's efficiency is measured by the total output per hour of labor. In this case, since you are answering more calls per hour, your efficiency is increasing (higher output per hour).
The quality of the service provided by a worker's is measured by the quality of their output (or performance), and if you satisfy your customers' needs. Since the service that you are providing is not that good, then your quality levels are decreasing.
You may be producing more services, but the services produced lack good quality.