GVoice is not working....It worked for me a few years ago, though
I checked and follow the latest instructions: https://www.sipsorcery.com/mainsite/Help/GoogleVoice
This worked for me, thanks!
Could not find _rnr_se key on your Google Voice account page
Re: Could not find _rnr_se key on your Google Voice account page
Fantastic! this helped me too. i was having issues with a new google account and this also solved my problem!