On the top of the page there is the word ‘more’ and an arrow.
Select arrow and scroll down to ‘even more’. Select ‘even more’.
A new window should open up displaying all the different apps that google offers.
click on ‘Voice’ App
In upper right hand click on the wheel icon (this is where your settings are located)
choose ‘Voice Settings’
Choose the ‘Voicemail’ Tab
A new recording can be created under the first option, titles ‘Voicemail Greeting’
Once you choose a name for your new greeting Google will confirm your cell # and call your phone to record the greeting through the microphone on your phone.