This is being touched upon at
https://productforums.google.com/forum/?utm_medium=email&utm_source=footer#!msg/voice/sn9gVxOEr2c/hm5VXPNwSpMJI am not capable of using the cookie suggestion made there.
I am hoping that perhaps some here have solved the problem.
On my Google Voice setting I see
Google Chat listed with my Email address.
It is not listed in drop down menu for making phone calls from desktop; "Phone to call with".
It was there and working until a couple of weeks ago.
I was thinking that perhaps a needed cookie had been nuked by Ccleaner. But same situation exits on other machines where I do not believe I have run Ccleaner.
Am I the only one here having that problem?