What was the issue?
There was an option for outbound Caller ID, which allowed you to register a number and use it to make calls while using your google voice phone.
Meaning if I have an american T-Mobile number 1718-123-4567 now when I go across sea's I want to continue using that number so people can know who's calling and not have to call from my GV number.
There was an option to verify that 718-123-4567 number and have that as the outbound caller ID when making a call and I would receive phone calls as well with this number as I would set up either across sea to forward every call to my GV # and would effectively have my tmobile phone number without paying to port in/out or any shtick.
For those who set this up before it went bad with the update, like myself I had this working every here and there, but another fix was to sideload an APK file of an older version and be able to pull back the features which were removed with the update!