I recently added a new GMAIL and Google Voice number (not Ported) to a new OBI. Sometimes when I place calls from the OBI, the called phone will display 760-705-8888. I will try again a few moments later, and the correct GV number displays. The results do not seem to be consistent, what is causing this? Is it a config on the OBI, Google Voice, or a glitch in the GV Servers?
I have also seen posts in 800notes dating back a few years about people getting calls from the same number.