Business Apps

Download the TISA Business App

Enterprise-grade communication app with advanced PBX features, end-to-end encryption, and comprehensive business calling capabilities.

Download Now Business Features
Enterprise-Grade Features
  • End-to-End Encryption

    Bank-grade security for all business communications.

  • Advanced PBX Features

    Full business phone system in your pocket.

  • Multi-Line Support

    Multiple simultaneous SIP registrations and providers.

Download for All Business Platforms

iOS Business App

Enterprise features for iPhone and iPad

Download on the App Store Available on App Store
Android Business App

Full PBX features for Android devices

Get it on Google Play Available on Google Play
Windows Desktop

Desktop PBX client for Windows

Download Windows App ZIP file download
macOS (Intel)

Business client for Intel-based Macs

Download macOS App PKG installer for Intel Macs
macOS (Apple Silicon)

Optimized for Apple Silicon Macs

Download macOS App PKG installer for Apple Silicon

Advanced Business Features

Security & Connectivity

End-to-end encryption for all communications
Wake up by push notifications for incoming calls
Multiple simultaneous SIP registrations
Works with multiple PBXs and SIP providers
Automatic failover and redundancy

Calling & PBX Features

Call hold with music or announcements
Attended and blind call transfer
Call conferencing (ad-hoc multi-party calls)
Call recording (manual or automatic)
Call waiting and call switching

Professional Business Tools

Line Management

Line indicator (shows multiple lines like a desk phone)
Extension dialing with short codes
Call forwarding and call diversion support
Do Not Disturb (DND) functionality

Messaging & Integration

Voicemail integration with visual indicators
Message Waiting Indicator (MWI) support
Corporate directory integration
Call analytics and reporting

Enterprise Deployment

Download & Deploy

Download apps for your organization across all platforms and devices.

Configure PBX

Set up SIP accounts, extensions, and business rules through your admin portal.

Train Your Team

Get your team up and running with advanced business communication features.

Enterprise Support & Setup

Our business team can help with enterprise deployment, configuration, and training for your organization.

Message us on +44 753 693 9500 Contact Business Team
Business Support

Email: business@tisa.one

Phone: 01908 737 500

Hours: Mon-Fri 9:30 AM - 5:00 PM