IPhone – Add contact as a Homescreen shortcut for the iPhone 4S

A custom label will have to suffice here. I have many contacts with their cell phones listed as 'mobile', and then a custom 'Google Voice' labeled number.

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An alternative to this is to make the change via Address Book.app on your computer, then sync the contacts to your phone.

Custom labels are available in all contact adding/modification screens.

First, browse to a contact, and tap the label name (to the left of a phone number, e-mail address, etc.). You will see the list of labels.

Second, swipe all the way to the bottom, and tap on "Add Custom Label".

Type in a new Custom Label;

And then it will be displayed next to the number.

It will now appear in a list of custom labels on later access.

In the settings, set your default Contacts account to Gmail.

1. Launch Settings
2. Navigate to Mail, Contacts, Calendars
3. Scroll down to Contacts
4. Under default account, select the email address you use with Gmail.

Now whenever you create a contact on iOS, it will be added to Gmail. The only time a contact will not be added to Gmail is if you go into the Contacts application, select Groups on the top, and choose an account other than All Contacts or your Gmail account (e.g. iCloud).