During calls, the current calls are shown and the elapsed time is shown for each call.
The following options are available from the Options menu when a call is in progress:
Hold: puts the current caller on hold; you can make other calls with someone on hold.
Resume: resumes a held call.
Swap: takes one caller off hold and puts the other on hold.
End: ends the call.
End all calls: ends all calls, even those on hold.
Join: creates a group call from those in progress.
Split: makes the group call into one direct call and one on hold.
Transfer: puts the caller on hold through to another number.
If your phone supports audio routing, then additional options will become available on this screen. The options will let you transfer call audio to the available connected accessories, e.g. Speakerphone, Bluetooth Headset, Headphones, etc.
For more Calls help, choose from the following topics: