fullstop.ai is proud to partner with Telstra, Google Cloud, and OMD Australia to help deliver one of the nation’s most joyful and creative AI-powered experiences: the 2025 Free Calls to Santa program.
Running nationwide until Christmas Eve, Telstra invites kids to dial #HOHOHO (#46 46 46) from any of its 14,000+ public payphones for a magical conversation with Santa himself. Since 2021, almost two million calls have connected Australian families — from big cities to the most remote communities — directly to the North Pole.
A Real-Time Santa Experience, Made for Australia
Every call is its own moment of wonder. Some kids tell jokes, some ask about reindeer training, and others simply want a little encouragement before Christmas. No two conversations are the same.
With Google Cloud’s conversational AI, Santa responds naturally, dynamically and in real time — transforming a humble payphone into a personalised Christmas experience only Australia could create: summer sunshine, a red phone box by the beach, and a direct line to Santa.
Crafting Santa’s Voice, Personality and Safe Interaction Model
Behind the scenes, fullstop.ai worked closely with Telstra, Google Cloud, and OMD to design the experience end to end — ensuring Santa feels warm, playful and unmistakably kind, while keeping safety at the heart of every interaction.
This includes:
- Google Cloud’s Customer Engagement Suite to orchestrate the real-time experience
- Gemini models powering dynamic, responsive dialogue
- A custom Santa Chirp voice, built from specialised training recordings to capture warmth, playfulness and emotional nuance
- fullstop.ai’s Secure AI framework, ensuring every conversation is safe, age-appropriate, and grounded in the joy of Christmas
- Through this combination of creativity and engineering, we’ve built a Santa who can delight millions — reliably, safely and at national scale.
It’s a perfect example of AI that quietly works in the background, while the magic stays front and centre.