[Asterisk-Users] Very complicated dialplans?

[Arik Funke]

Hey,
how can I implement a dial plan like the following:

incoming call:
1. ring phones 1,2,3 monday to friday between 9:00 and 20:00; if no 
answer after 15 sec also ring phones 4 and 5
2. ring phone 1 monday to friday between 0:00-9:00 and 20:00-24:00; if 
no answer after 20 sec also ring phones 2 and 3
3. ring phone 1 saturday and sunday all day

I do not need a in detail answer for each of the three cases... I hope I 
am smart enough to generalise the answer... I just don't see an easy way 
to do this right now.

Thanks for the effort.

Best regards,
Arik