Voice usage has become mobile, instant and multi-device.
Yet millions of fixed lines are still deployed, and underused.
UP! transforms the fixed line into a mobile-ready service, without changing habits, infrastructure or user identity with a simple mobile app.
The fixed line is still massively deployed and trusted.
But voice usage is declining.
Users are mobile, always connected, and expect continuity between home and mobility.
UP! does not remove the fixed line.
It transforms it.
UP! is a mobile application (iOS / Android) that allows users to emit and receive calls from their fixed line on smartphones.
When someone calls the home number:
Same number. Same call. Same experience.
UP! is not always running.
The app sleeps, and wakes up only when needed.
UP! uses push notification mechanisms (Apple / Google) to wake the application instantly when an incoming call occurs.
Even when the app is closed, the smartphone rings at the same time as the physical phone.
This creates an immediate “wow effect”: no manual action, no background drain, no complexity.
It feels as simple as a messaging app, but for the fixed line.
Simple to install.
Instantly understandable.
No configuration.
But unlike OTT apps, UP! remains fully controlled by the operator:
A number that reassures, gathers and belongs to the household
UP! creates value without disrupting existing assets
Built for mobility, resilience and sovereignty
UP! is based on WebRTC technologies optimized for telecom environments.
Calls are maintained across:
DTLS-SRTP media encryption.
No long-term state on the mobile device.
Fully compliant with operator security and GDPR requirements.
UP! makes the fixed line as mobile as today’s users, instantly, simply, and securely.