Doxyme is not defaulting to the speaker

I am having a lot of trouble with the application since it defaults to the headset speaker. Most of my elderly patients are unable to switch to the speaker. I am sure that there is a way of defaulting to either the front or back camera as well to with speaker even while using html.
Thanks for your support.

Hi There,

The patient should be able to select the setting gear icon down in the middle of the screen on the live call and change the speaker source, if they are using a tablet or phone they made need to look for the 3 slashes that openes the access to the call settings and from there they can switch the speaker, camera or mic. Is the issue not being able to get into these settings, or do they find them, switch them and it does not sort of take effect?