How to import/sync your iphone/apple contacts to gmail/google voice/google account

1. log on to icloud, select contacts app
   https://www.icloud.com/#contacts
2. click the gear button at left botton and choose 'select all'
3. click the same gear button again and choose 'Export vCard'
4. save that file on your desktop
5. open Gmail page, click the triangle next to Gmail logo at top-left, select contacts
6. click 'import contacts... ' at left column
7. choose the file you saved from icloud.

That's it