A VoIP service called the Gizmo Project let users place and receive calls over the Internet. Users could make free calls to some Gizmo Project users anywhere in the world using the service, which was accessible on Windows, Mac, and Linux. Through its Call In and Call Out options, it also provided the option to place really low-cost calls to landlines and mobile devices.

One of the main benefits was that working without a cell phone or SIM card was possible. The application allowed users to make and receive calls from any location in the world by downloading it to their computers. The service also provided a wide range of extra features, including the option to share files with friends and family, real-time chat, and the ability to add sound effects to calls.

The audio quality of the calls, which was typically amazing due to high-speed Internet connections, was another benefit. Additionally, the service provided a call quality wizard option that let users evaluate and modify their connection's quality.

Users of the Gizmo Project had access to a wide range of extra features and choices. These characteristics include:

• Sound Effects : Users could add sound effects to their calls during the conversation.
• Call Quality Assistant : This option allows users to check the quality of their internet connection and adjust it accordingly.
• Online status : Users can see the online status of their contacts and choose their status.
• Call map : This option shows a detailed map of the location of each call.
• Real-time chat : Users could chat in real-time with their contacts.
• File sending : Users can share files with their friends and family through the application.
• Chat groups : Users can create or join chat groups and chat with several contacts simultaneously.
• Avatar : Users could customize their avatar and the image displayed to other users.

Additional options included:

• Multi-Network Chats : Users could chat with their contacts from different messaging networks.
• Free phone number : Users could get a free phone number to receive calls from landlines and mobiles.
• Location-connected phone number : Users could get a phone number that tracked their location and could receive calls anywhere.
• Dual call : This option allows users to ring two devices simultaneously when receiving a call.
• Call transfer : Users could transfer calls to other devices or phone numbers.
• Call filtering : This option allows users to filter incoming calls and choose whether or not to receive them.
• And many other additional options.

In short, Gizmo Project was a very comprehensive VoIP service that offered its users a wide variety of options. Although the service is no longer available, it is still remembered as one of the leading options in its field at the time.