C3 Phone

C3 Phone is a professional VoIP softphone developed to facilitate communication via SIP extensions, offering high-quality calls directly to your mobile device.

Ideal for businesses, internet providers, and IP telephony system users, the application allows you to make and receive calls with practicality, stability, and full integration with your VoIP server.

MAIN FEATURES

• VoIP (SIP) calls with high audio quality
• Call reception even with the app running in the background
• Real-time notifications for incoming calls
• Complete dialer with DTMF support
• Integrated contact and extension list
• Automatic registration on the SIP server
• Call control (mute, speakerphone, and hold)
• Call transfer
• Call history
• Compatible with Wi-Fi, 4G, and 5G networks

SIMPLE CONFIGURATION

Easily configure your VoIP extension by providing:

• SIP server (domain)
• Username/extension
• Password
• WebSocket (when applicable)

The application also allows configuration via QR Code, making it easier to... Deployment in corporate environments.

SECURITY AND PRIVACY

C3 Phone uses secure communication protocols to ensure call integrity.

The application may request permissions such as:

• Microphone: required for making calls
• Camera: used for QR Code reading
• Notifications: to alert about incoming calls

Data is used exclusively for service operation.

REQUIREMENTS

• Active VoIP account with C3 Consultoria (SIP)
• Internet connection

SUPPORT

For technical support, contact the C3 Consultoria team.