Grab Mumble from mumble.info and add mumble.rys.pw as a server in it!
If the server is down try downloading it directly through this link (Windows).
For Android there's Mumla.
Then to connect to my server:
Server -> Connect -> Add New
Port: 64738 (default)
The default mic setting is voice detection, to just talk at all the times:
Configure -> Settings -> Audio input -> Transmit=Continuous
There's an experimental web version, but it doesn't work good at all.