How can I separate personal and business contacts in iPhone 12's address book?

On an iPhone, there is no built-in way to block or route calls based on the Contacts account in which a contact is stored.

Explanation:

• Call Filtering & Blocking: iOS allows you to block individual contacts, but it does not provide an option to block or silence all calls from a specific Contacts account (e.g., Business vs. Personal).
• Focus Mode Limitations: While you can use Focus modes (such as Work or Personal) to allow or silence calls from specific contacts or groups, these must be manually created and are not automatically linked to a specific Contacts account.
• Third-Party Apps: Some third-party apps may offer call filtering based on tags or categories, but iOS does not natively support this feature.

Workarounds:

• Use Focus Modes with Contact Groups: Manually create a Work or Personal group within your Contacts app and use Focus settings to allow or silence calls from these groups.
• Third-Party Call Filtering Apps: Some apps may offer limited filtering options based on custom categories.

You may try this method too.

Create Groups in iCloud Contacts as shown in Picture 1. Then, assign these Groups to a Focus mode (Personal or Work) as needed, as shown in Picture 2.

Picture 1

Picture 2

Unlike some Android devices, contacts are neither stored locally on an iPhone nor in SIM. They are synced to an email account that you have Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other

Use one email account for business and a separate one for personal use.

What is your default Contacts account? When you add a new contact, it will be saved to your selected default account. If you want to save it to a different account, you must manually switch the default account each time.

If you have a corporate email account added through a profile on your device, please check with your organization's system administrator.

1. Is this your corporate/organization/enterprise/School Management iPhone? Then please contact the system administrator of your corporate//organisation/enterprise/School Management
2. If it is your device, in that case, do you have any profile installed by your corporate/organization/enterprise/School Management?
   1. Erase the profile added by you If you have installed a profile on your own --> Install or remove configuration profiles on iPhone - Apple ...
   2. Please contact the system administrator of the organization who provided the profile to you