I manage the IT for a school and we’ve recently added about 40 GSC3505 speakers. These speakers are tied to a FreePBX system for bells as well as for multicast school wide announcements. They do code red, tornado, fire drills etc. and the last few times several classes have mentioned not hearing these alerts. HUGE ISSUE of course. When I log into the web interfaces I’m presented with a screen essentially indicating that a call is in progress to said speaker, and that it’s been going on for quite some time (the one I found 3-4 days). Even though I have the priority on multicast set at 1 and the speaker to allow barging, it seems that these locked up calls are preventing multicast from getting through. Anyone seen this or offer any advice on how to remedy it?