VPI is one of the leaders in call center software. Stratasoft and Alorica are two additional companies that are leaders in the call center software industry.
If you were my client - I'm a case manager in employment - I would suggest that an answer I would give would sound something like this: "I see the conributions I can make to your call centre would be...
You answer a call in a call center just the way management tells you to. Each call center service has its own requirements for how a call is to be answered.