For all the cool kids with both iPhones (or any GSM-based phone) and a Google Voice (previously GrandCentral) account, forward your unanswered calls to Google Voice to receive the voicemail and a transcript in your email account.
Step 1:
On you iPhone (or any GSM-based phone), pull up the keypad and type the following, substituting 1234567890 with your 10-digit Google Voice/GrandCentral account:
*61*1234567890#
Step 2:
Log in to your Google Voice account and turn on Do Not Disturb mode.
That’s it. All unanswered calls to your iPhone will instantly be dropped in to your Google Voice voicemail.
To restore your iPhone to the original visual voicemail settings, pull up the keypad and enter:
##61#
Your settings will be restored.
Cross-posted from http://www.sh2.com/blog/iphone-to-google-voice/


Google voice is great! I just switched from YouMail today! I love the free transcriptions and the mobile interface is much quicker!
Really to have a solid solution, you need to make all 3 forward incase your phone is busy, out of service instead of just not answering!
Use:
*61*1234567890# Call Forwarding No Reply (AS NOTED ABOVE)
*62*1234567890# Call Forwarding Not Reachable
*67*1234567890# Busy Call Forwarding
Then to cancel
##61#
##62#
##67#
Ryan, great points on the additional codes.
Does anyone know how to setup a work phone with extensions?
For our phone system, a four second delay between dialing the number and extension would do it.
Try two commas between the main number and extension
Just found this – very helpful, thanks! I experimented, but decided to turn it off again because I don’t want all my GV calls going straight to voicemail. If only it could be done selectively for forwarded calls… does anyone know if this is possible?
Anyhow, one potential thing to watch out for – if you enable and then re-disable the call forwarding codes as I did, your voicemail greeting will revert to the generic “Number 123-456-7890 is not available”. I tried to re-activate my prior custom greeting from the phone, but the only way to do so is to re-record a new one. Not the worst thing in the world, but kind of dumb.
Very Helpful -
I was wondering if anyone was able to get the move advanced option cutting down the ring time of ‘no answer’ to work -
*61*[dest]*[sec]#
Supposedly one can also define how many seconds before forwarding 0-30 sec, if nothing is entered, it will default to 30.
I was not able to get AT&T to allow me to enter anything – just wondering
I just found this out. Setup a new contact within GVoice with your cell/home/or whatever number you have forwarded. Go into the edit screen and uncheck all the ring to numbers. See this picture for an example:
http://tittr.com/48045
Hope this helps!
I found that there’s no need to turn on “do not disturb” mode. I have my voicemails forwarded to GV so if somebody rings my iPhone number, after 20 seconds GV will try to ring my iPhone… Here’s the cool part: My phone still reports me as “busy” on the line with the original call and the GV call is forwarded immediately (ok, after one ring) to voicemail. Seamless integration, even if by accident.
I found that there’s no need to turn on “do not disturb” mode. I have my voicemails forwarded to GV so if somebody rings my iPhone number, after 20 seconds GV will try to ring my iPhone… Here’s the cool part: My phone still reports me as “busy” on the line with the original call and the GV call is forwarded immediately (ok, after one ring) to voicemail. Seamless integration, even if by accident.
This is preferable if, like me, you want to take calls through GV but also have your iPhone voicemails forwarded to GV.
unlike other users above, i cannot set google voice to Do Not Disturb. I accept incoming calls through google voice which end up being forwarded to my iPhone and Skype.
What happens when I put in the above code is:
1) Person calls iPhone
2) iPhone forwards to Google Voice after default # of rings
3) Google Voice forwards to iPhone and Skype,
4) Google Voicemail answers
5) iPhone visual voicemail no longer works
I can’t have callers hearing 2 different rings for ~60 seconds just to have all my voicemail go to a single repository.
Hopefully Google will enhance this feature even more.
this doesn’t seem to work any longer.. i get some error messages when trying to forward using *61*…# ..any update on this?
@ryan
I just disabled and re-enabled mine without any problems. Which model iPhone are using, what version of software, and what provider?
I show this fix step by step from an iPhone and from the google voice site on this video I made on youtube:
youtube.com/watch?v=NGom5hZiJzU
Hope that helps!
Todd Maddex
Crash Tech Dummies
youtube.com/crashtechdummies
THANK YOU!!
I had this feature turned on for my old iPhone but i just upgraded to the 4s and couldn’t find out how to do this inside of google voice where I found it before. Works perfectly. THANK YOU!!
Now, if there is a way that everything could be sent to google voice ASWELL as visual voicemail, I would be a total happy camper – anyone figured out a way to do that???
@aaron
To forward everything:
*21*yourGVnumber#
If you want/need to deactivate it:
#21#