Zumspot & Openspot 2
You'll want to be really careful with this. If both hotspots are on the same frequency and within range of your radio, you can cause a "loop" that ties up the reflector/room/TG that you are on. It will take a "kick" by a reflector/room/TG admin to reset everything. Best practice is to never have two hotspots on the same frequency. I have two hotspots in range of each other, but they are on different frequencies. That way, no "loop" potential.
Hope this helps.