i'm working for a doctors office and we have an answering service which answers their call during off hours and forwards a text to the dr. when a patient has an issue. this answering service is getting increasingly incompetent (rude, beligerant with patients, make lots of mistakes). i've heard of people using google voice and using the voicemail transcription service to forward a text of a voicemail the patient leaves the dr to the dr's cellphone. i'm looking for some help setting this up. i've gone to the google voice site and the google voice help forums. but, don't understand the process of porting to google voice. do i have to port the cell phone i want texts forwarded to google voice? will i no longer be subscribed to AT&T? i don't understand where google voice begins and AT&T ends. i understand it's a $20 fee to port the number. is this a monthly fee? or a one time charge? i have several doctors which are on call. do i have to port all their numbers? and am i thinking of this correctly? the mobile number is the one you port? the patient calls the office number ( a land line) and the voicemail is transcribed and forwarded to the cell phone number?