Following a recent Hangouts update, when using Android 5 on Nexus 5, in an SMS conversation with a contact, touching the "handset" icon automatically launches the Hangouts dialer, while I would like to use the default phone dialer instead.
I did not find any option to change this back to the previous behavior. Is this possible at all?
Set default hangouts dialer to "Cellular Network (The default dialer you want)"
If you clear the cache on the dialer (hangouts dialer), it should prompt you the first time after that (when something triggers the dialers) asking which dialer to use. You can select "always" on the regular dialer. This will use your cell service, not Hangouts.