Installing ACS 7.0, and trying to implement paging over phones. Book says I70 for loudspeaker paging and I*70 for simultaneous loudspeaker and telephone paging. I got it working but had to asign a spare line jack (#617) and put ext's on Group 1 even though there is no paging over loudspeaker. Is there a way to make internal phone paging without having to assign a line jack?