Give everyone on your team their own extension. Create department and employee extensions that ring multiple phones in any order and forward anywhere: home, office, or cell phones.
1.) Le informamos de que esta llamada está siendo grabada con fines de formación y para mejorar la calidad del servicio.

I’m going to ask you to consider something you probably have never given much thought to: your own voicemail greeting. You may call this your outbound greeting or outgoing message. No matter what you call it, this is what callers hear when you don’t answer your phone. Or should I say, it’s what callers are forced to listen to even though they don’t want to.
Don’t be too hard on yourself. Chances are, that voicemail that you’ve recorded and deleted thirty times has been just fine. Your main goal is not to get in the way of the caller leaving a message, which is exactly what can happen if you overthink it or drone on too long.