None.
joinaQ™ can deliver the exact same experience you are used to from legacy QMS systems...i.e via kiosks, TVs, and PA systems... so if you prefer
THAT approach, you will need those pieces of hardware. Hardware costs, and installation thereof, are not part of joinaQ's pricing.
If you prefer to go the more innovative, and futuristic way, you can opt for joinaQ's fully mobile channel: Everything happens on the customer's phone!
That includes the familiar "Next customer, please go to ...." announcement (including customizable voices!), the introduction to agents, any advertising or messages and all feedback related interactions...

An illustration of what a customer sees on their device when being called by an agent.