How to take a call in Rocket.Chat voice channel?
After you make yourself available to receive/make calls, you can start taking inbound calls.
Call Operations
Call In Progress
Click the Accept button to accept the call. The ongoing call appears as shown below:

Mute/Unmute Call
You have controls to mute/unmute calls.

Hold/Unhold

If you're using Rocket.Chat's enterprise edition you can hold and unhold acording to your workflow needs.

Device Settings

Enterprise edition also offers you the flexibilty to switch device during an ongoing call.

Call Wrap-up

After the call ends you can leave your notes in the call wrap-up. It is an enterprise-only feature.
