I'm going to discuss things with my customer tomorrow…
Valcom offers talkback page controls with multiple zones. Each zone will handle 2 talkback devices and up to 40 one-way speakers at the same time. I wonder how they avoid feedback if using only 2 talkback speakers in close proximity such as in an office area with no one-way speakers used. In what I have read in their tech documents it is doable. Does anybody have any experience with manufacturers other than Valcom and Bogen?
