Custom vibration pattern for specific contacts.

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Contact Photo/Avatar: A visual identifier that appears during calls, messages, and in the contact list.
Ringtones and Vibration Patterns:

Categories for organizing contacts (e.g., "Family," "Work," "Friends," "Clients"). This aids in bulk messaging or filtering.
Emergency Contacts:

Specific designation for contacts that emergency responders can access from a locked screen.
Integration with Apps and Services
The true power of a smartphone contact list lies in its deep integration turkey phone number list with other applications and services, creating a seamless communication ecosystem.

Calling and Messaging Apps:

Native Dialer/Messages: The most fundamental integration. Tapping a contact's number initiates a call or opens a messaging thread.
WhatsApp, Telegram, Signal, Viber, etc.: These apps request access to your phone's contact list to automatically identify which of your contacts are also using their respective services, making it easy to start conversations. They often display profile pictures and names from the messaging app itself, enriching the contact.
FaceTime, Google Meet, Zoom: Video calling apps leverage contacts for direct calls or inviting participants.
Email Clients:

The contact list provides email addresses for composing new messages, and conversely, email clients often suggest adding new contacts from email interactions.