In the app you can share your calls from your own log. When you share a call to a chat or channel, they will be able to call the caller back directly from the chat.

You can also share calls from the call log, read more about it here

How to share a call

From your own log:

• 1. Click on the call you want to share
  2. Click
  3. Add a comment if needed
  4. Type the name on the colleague, team or channel to which you want to share it
  5. Toggle include call recording if you want to share it
  6. Click share
• 1. Tap
  2. Tap
  3. Add a comment if needed
  4. Type the name on the colleague, team or channel to which you want to share it
  5. Toggle include call recording if you want to share it
  6. Tap share