•  Go back to your chat during the call.
  • Tap your avatar to return to the call screen.
•   Switch from Grid view to Speaker view. 
•  Turn speaker on or off during the call.
•  Take a snapshot of your call and share with your friend.

To see more options, tap the more  button:

•  Blur my background (iPhone and iPad only).
•  Allow incoming video, switch on or off.
•  Switch subtitles on or off.
•  Add people to your call. 
•  Record your Skype call.
•  Send a reaction during your call.
•  Share your screen during the call. 
•  Raise or lower your hand in a group call.

See who you want to see (video calls only). Switch between you, or your friends' video feed. Tap and hold on any participant in the call and drag them to the main calling window.

End the call when you want to. From the top of your ongoing call select the chats button  > then the back arrow > then select end call from your Recent chats list. You’ll also see how long you’ve been on the call.

Chat with someone 1:1 from a group call. During a group call, tap and hold on the participant and select Send message.

Mute or Remove from call (group calls only). Tap and hold on any participant in the call, and then select mute or remove from call. If you mute or remove someone, they will receive a notification of Another participant muted your microphone or You have been removed from the call by another participant.
 

•  Switch views: 
  • 3x3 Grid view (only available in Skype for Windows, Mac, and Linux).
  • Grid view.
  • Speaker view.
•  Hover over the microphone to bring up additional audio options:
  • Select a different microphone device if you have one connected.
  • Select a different speaker if you have one connected. This will also enable your speaker phone option.
•  Hover over the video button to bring up additional video options:
  • Select a different camera if you have one connected.
  • Select Blur my background. This will allow you to make yourself the priority and blur your background in a video call. (not supported in Linux)
  • Select Webcam settings if you would like to make any adjustments there.
•  Add people to your call. 
•  Open your chat during the call.
  •  Share Contacts, Location and other add-ins.
  • Open the chat window in full screen.
    • Click the Return to call button to return to the full screen call view.
•  Raise or lower your hand in group calls.
  • Raise Hand during a call and the group will receive a notice that you raised your hand.
  • After you've been acknowledged or if you change your mind about speaking, select Lower Hand.
  • In moderated groups, the moderator can lower participants' hands.
•  Share your screen during the call.
•  Send a reaction during your call.
•  More options, to Start recording, Take snapshot, Turn subtitles on, Turn off incoming video, Hold call, go to Audio and Video settings or if you can, Choose background effects (not available in Skype for Web) during a video call.

See who you want to see (video calls only). Switch between you, or your friends' video feed by clicking on any participant in the call and dragging them to the main calling window.

End the call when you want to. Select Open recent chats  to end the call from your ongoing call in your Recent chats as well as see how long you’ve been on the call.

Resize your video preview. During a video call, hover your mouse over your video preview and use expand  to make it bigger or smaller.

Switch between cameras (video calls only). During a video call, right-click on your avatar to select a different camera. 

Chat with someone 1:1 from a group call. During a group call, right-click on the participant and select Send message.

Mute or Remove from call (group calls only). Hover over any participant in the call, and then click the down chevron next to their name to mute or remove them from the call. If you mute or remove someone, they will receive a notification of Another participant muted your microphone or You have been removed from the call by another participant.