Things to understand before porting your number to Google Voice:
*The cost of porting is $20.00 (payable through Google Wallet).
*Your mobile phone service plan will be terminated when you port your
number to Google Voice and your carrier may charge you an early termination
fee.
*Once porting is complete, you will not be able to receive calls to your
mobile phone until you complete the following steps:
#Google Voice is not a mobile phone service provider, so you must
setup a new mobile phone service plan (with your existing carrier or a new
carrier) and request a new number.
#Once you've secured a new mobile service plan and a new number, you
will need to add this new number to your Google Voice account as a
forwarding phone.
*You may be unable to receive text messages for up to 3 business days
after the porting process is complete.
*Your Google Voice number will be replaced by the number you are porting
. It will remain on your account for 90 days (you will be able to make it
permanent for a one-time $20.00 fee).