Hunt group then call off net

[111101001101001]

Hi

Whats the best way to configure the following senario:

Call comes in and needs to ring a group of 6 phones
If no one answers after 4 rings then the call gets forwarded to a mobile number?

im assuming its either VDN & Vectors or hunt groups with cov ans paths but just wanted to see which is the preferred way.

Thanks

 

[BIS]

Are these ACD calls? If not simply set up a station with a cover path, where p1 is a cov ans group and p2 a coverage remote.