Now I know we have team speak but it's pretty archaic to be honest most people use vent. I can use tip a vent set we for us but it can only hold about 10 people. Now there's a new service that's out that's really lightweight and easy to setup its called raidcall I've already set up a group for us on there called yandhserver. You don't have to use just post your options down below but personally I like having a VoIP service to use and talk to people.
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