I have a existing Merlin Magix with a PRI with all calls going to auto attendant. They are adding new dept. with just 4 grd. start lines 8 digital phones and 4 to 5 analog sets and both groups will not share lines. On making outside calls would it be easiest to add the 4 trunks to a seperate pool and via ARS and FRL restrict groups? Also not being that familiar with the Magix, incoming calls they want to ring on all phones what is the best way to accomplish.