World-class contact management for a smoother everyday life
From secure cloud storage to a complete personal assistant. For over a decade, Tactel and Telenor have developed Se Hvem into Norway’s most reliable service for contact management, caller ID, and digital security.
A journey of constant innovation
The partnership between Telenor and Tactel spans over fifteen years. What began as a dedicated service for contact backups has evolved and been refined through the years. By listening to user needs, the service was renamed Se Hvem when caller ID became a core feature. Today, we have taken the next step, focusing on being the ultimate partner for everything related to your contact list.
Contacts at the core – from secure backup to proactive assistance
In a digital world, the contact list is one of our most valuable assets. Tactel has built a solution that doesn’t just store contacts, but actively maintains them.
- Seamless synchronization: Whether the user switches between iOS and Android, or stores contacts in iCloud, Google, or Outlook, Se Hvem ensures everything stays connected.
- Proactive cleanup: Using smart algorithms, the app identifies and merges duplicates. This is about more than just organization—it reduces data load and saves battery life.
- Intelligent enrichment: The service helps users keep their lists updated with addresses and complete information, ensuring contacts are always comprehensive.
“We don’t just build apps; we manage and refine digital trust. Keeping a service relevant and technically leading for such a long time requires both deep technical expertise and a genuine understanding of the end user.”
Johan Stenlund, Head of Development at Tactel
A complete experience "above and below the hood"
For a partner like Telenor, Se Hvem is about delivering a service that is as beautiful on the outside as it is efficient on the inside.
- Scalability: Our backend handles millions of users and vast amounts of data with extremely high reliability.
- Proactive maintenance: Through advanced tracking and alerts triggered by the slightest deviation, we stay one step ahead, resolving potential issues before the user even notices.
- Modern design: By recently updating the navigation and interface, we ensure that a ten-year-old service feels like a brand-new experience.
Powerful companions: Caller ID and Travel Guide
While contacts are the heart of the app, caller ID and the new Travel Guide make Se Hvem indispensable in everyday life.
- Confidence in every call: With Se Hvem, users always know who is calling.
- A travel companion in your pocket: The integrated travel guide and currency converter activate when the user needs them most, keeping the app relevant even while traveling.
Technical Milestones & Delivery
Backend & Architecture: Server environment setup for millions of users with ongoing work to increase efficiency per server.
Mobile Platforms: Native development for iOS and Android with a focus on performance and low battery consumption.
Maintenance & Support: 24/7 on-call support and proactive monitoring that has drastically reduced the number of incidents.
Innovative Features: Everything from business card scanning (OCR) to a smart guide for merging similar contacts.
“Tactel is a fantastic partner. Through our frequent follow-ups and deep discussions, we co-create roadmaps that ensure we are constantly refining the service and working effectively on product development for both the short and long term.”
Amel Misimovic, Product Owner at Telenor
What we do
- Set up and management of a server environment that can handle millions of users.
- Development of backend.
- Development of web solutions.
- Development of mobile apps.
- Interaction and visual design.
- Testing, maintenance, and monitoring
- Second-line support and 24/7 on-call
- Strategy and product planning
Better, smarter, and more efficient
Impact and optimization in numbers
3x
300% higher server capacity: Through a smarter backend and more efficient database layer, each server now holds three times more contact lists than before we initiated an extensive efficiency project. This results in lower costs and reduced environmental impact.
5x
5 times faster synchronization: By rewriting the service, we reduced contact list sync time by 80%. This provides a noticeably better user experience and saves battery..
90%
90% fewer duplicates: Our continuous cleanup algorithm removes 90% of all duplicates in users’ contact lists, optimizing data traffic and creating order for the user.
Reliable Support
Our support and on-call services are active 24/7. However, our relentless focus on continuous improvement has reduced the number of alerts—allowing both us and the customer to focus on more rewarding tasks.
