22.Hello, you’ve reached [X company]. Unfortunately, we can’t answer your call right now. But your call is very important to us — so please leave us your name, phone number, and the reason for your call and someone from our team will get back to within [X number] business days .
Expand your message with 'We're sorry we couldn't take your call this time.' The inclusion of 'this time' or 'on this occasion' suggests that the voicemail is the exception rather than the rule.

3.) Bienvenido/a a John Doe. En estos momentos no podemos atender su llamada o nos está llamando fuera de nuestro horario de oficina. Por favor, déjenos un mensaje con su nombre y número de teléfono, le devolveremos la llamada lo antes posible. Gracias y hasta pronto.
Consider for a moment how your phone is currently being answered. Professional courtesy is quite often not the standard for many college students. An abrupt "Yeah!" could be listed among the more courteous greetings. The more outrageous remarks will often buy you a major black mark in the professionalism category—even if it was your roommate answering your phone and acting crazy. A simple "This is ____" is always a pleasant change for a college student call. Make the change today, before the next (or first) employer phone call. If you have a landline, you should also encourage your roommate to do the same.