Niko's mobile phone is more than just a communication device; it's a central hub for missions, social interactions, and even some in-game services. Understanding how to use it effectively is crucial for progressing through the story and maintaining relationships.

Phone Functions:
- Up Arrow Key (PC) / D-Pad Up (Console): Open Phone
- Left/Right Arrow Keys (PC) / D-Pad Left/Right (Console): Navigate Menus
- Enter (PC) / A/X Button (Console): Select Option
- Backspace (PC) / B/Circle Button (Console): Go Back/Hang Up
Key Phone Features:
- Contacts: Call friends, family, and mission givers. Maintaining good relationships with certain contacts (like Roman or Little Jacob) can unlock special abilities or services.
- Messages: Receive mission updates, social invitations, and sometimes even job offers.
- Organizer: Keep track of appointments and mission deadlines.
- Camera: Take photos within the game world.
- Multiplayer: Access the online multiplayer mode.
- Cheats: Enter cheat codes to unlock various effects (be aware that using cheats disables achievements/trophies for that save file).
Always check your phone for new messages or missed calls, as they often lead to new missions or important story developments. call your friends occasionally to hang out and boost your relationship stats!