Currently on video call screen we have speaker, microphone and other
icons we can see on attached screenshot. When the speaker is pressed
it popups call volume dialog.
I need to find a place for controlling speakerphone on and off. For
now I can make speaker button responsible for it. When the user makes
a long press the volume dialog will be displayed similiar as it works
for microphone. However it feels unintuitive - probably user won't
know that he have to hold it. What do you think ? Do we need
additional buttons ? It will be hard to fit them.
Another option would be to add options menu item for speakerphone.