Centralized Attendant Service CAS or NAS

[seatech]

I have two hotels that want to centralize their attendant service at one location but have some questions. Both sites have CAS capability although one is newer software. My questions are;
Can you still do automatic wake ups for both sites across the link? Can you set DND's at the remote site across the CAS PRI?
Any other pitfalls or areas of concern when doing this in a hospitality environment?

Thanks.