[Asterisk-Users] pickup any call

[Altus Snyman]

Good day all
I want to know how to configure asterisk so that for instance if you
press *5 it will pickup any ringing(unanswered) calls.

My problem is this,at lunch time a bunch of people go out for lunch and
when a call comes in it just ring and go threw the whole step.
I want someone,whoever is left in the office to press something and
answer any ringing phone?
Can this be done?
Thanks
Altus