If you have successfully unlocked your iPhone, you may have discovered already that the voicemail button doesn't do anything at all. It won't give you visual voicemail, but you can easily get the voicemail button to work using any carrier following these steps:

1. First, take note of what your voicemail number is with your current provider (for example, in Spain the Vodafone voicemail number is 177).
2. Click on the phone button in your iPhone.
3. Click on the keypad tab.
4. Tap the following code:

*5005*86*xxx#

The xxx is the voicemail number, in our example it will read: *5005*86*177#

5. Tap call. 6. After a second, the code will have been set. 7. Tap now on the voicemail button and it will automatically call your usual voicemail service.

This tip comes from the iPhone Dev Team wiki (which can't be linked to by their own request.) You can support their efforts following the instructions here.

7:10 AM on Wed Sep 19 2007
By jesusdiaz
27,435 views
11 comments

Comments

OMG! Ponies! at 06:37 AM on 09/19/07
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Or you can wait for the I-phone to come to a better carrier, instead of rushing out an buying it on launch day...
BillyMumphry at 07:56 AM on 09/19/07
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or you can wait until they cut it $200 and an buy one and unlock it for free...oh that happened...and my voicemail button worked just fine after using one of the many unlock methods floating around the interwebnets.
jesusdiaz at 08:03 AM on 09/19/07
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Lucky you. If you are not in the AT&T network, chances are your voicemail button won't work. It didn't work in mine, that's for sure. This hack fixes this.
lolec at 10:07 AM on 09/19/07
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where can i find my carriers number? to get voicemail i just tap *86 but thats definitly not yhe number im looking for did i?
EL_RIEL at 11:21 AM on 09/19/07
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mine already have voice mail access, i guess is stored on the sim or something like that..

but it works!!
jekyoo_style at 02:02 PM on 09/19/07
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I never had an issue with the voicemail button. o_O
goodsvandi at 02:41 PM on 09/19/07
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Yes I did it.. An ardent Nokia fan, bought one yesterday for my wife. Used DVD Jon to activate.. now desperately searching for ways to unlock.. @BillMumphry, any help?
goodsvandi at 02:43 PM on 09/19/07
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On a second thought, I am looking through the Giz post on iUnlock.. looking for further instructions..
darb215 at 01:06 PM on 09/20/07
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anyone know the number for south east t-mobile?
darb215 at 03:56 PM on 09/20/07
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any one know the number for t-mobile south east?
TessCabiri at 07:11 PM on 05/04/08
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Comment on How To: Activate the Voicemail Button in Non-AT my voicemail number is *123 and u have to dial the * do i just add an extra * to code? also i use two different sims and one is ATT&T so how do put the voicemail button to go back to working on AT&T when i go back to using that one? Thanks, a lot