ImperiumMC Features a custom advanced & Phone plugin.
This phone plugin allows players to buy a phone item, which brings up a GUI menu with phone apps when right-clicked. Each player is given a phone number and can add others to their contacts to call or message them. The plugin is GUI based and includes texting & calling. Each phone is linked to an independent phone number, making phone theft possible. This also allows for owning multiple cellphones.
The plugin also includes custom apps (config not player based), contacts, multiple phone types, donator cosmetic phones, an option for company numbers that go to the first to respond, emergency service phone numbers based on countries with dispatchers, charging phones with electricity, wire taps, requiring a nearby cell tower to work, and allowing players to choose their provider and get charged based on messages and call times set by the company.