I have a client that would like to take the paging capability one step further. They'd like to have speakers in a high ceiling in a gym and other places in their location to be used as a paging system. I've looked a bit online and found a couple of VOIP PA Systems but most of them seem proprietary and unlikely to work with 3CX. Has anyone here found any good solutions to a challenge like this? My thoughts were to take a VOIP handset and wire the leads into an amplifier and then out to several speakers, although that seems unprofessional to me.