Avaya Spaces Is Gone.
Avaya officially shut down Avaya Spaces on September 15, 2025, leaving thousands of businesses urgently searching for a replacement. If your organisation relied on Spaces for messaging, meetings, and collaboration, you need a solution that goes beyond a simple chat app.
This guide explains why E-MetroTel InfinityOne is the replacement IT teams are choosing – and exactly what makes it different from alternatives like Microsoft Teams or Zoom.
However, Avaya officially discontinued Spaces in 2025, leaving businesses with an important question:
What happened to Avaya Spaces?
Avaya announced the end-of-life for Avaya Spaces effective September 15, 2025. All Spaces-based messaging and collaboration features were permanently discontinued on that date. Organisations that had not already migrated were left without a collaboration platform overnight.
The shutdown is part of a broader shift at Avaya, which has been narrowing its focus to large enterprise customers leaving many mid-size businesses without clear options or support.
That’s where E-MetroTel InfinityOne comes in.
Why InfinityOne is the right Avaya Spaces replacement
Most alternatives force you to choose between keeping your phone system or getting modern collaboration. InfinityOne does both.
Everything in one place
- Persistent team messaging and group channels
- Voice and video calls from the same app
- Presence and availability status
- SMS integration
- Voicemail and call management
- Single business identity across mobile, desktop, and desk phone
Protect your existing investment
Unlike platforms that require a full rip-and-replace, E-MetroTel works alongside infrastructure many organisations already own. You do not need to scrap your existing phone system to get modern collaboration. This alone saves most businesses tens of thousands in replacement costs.
Built for how people actually work
Employees can start a conversation on their desk phone, continue it on a mobile app, and finish it on a desktop all under the same extension. Customers always reach the same number. Teams stay connected whether they are in the office, working remotely, or travelling.
Flexible deployment - your choice
- On-premises for maximum control
- Private cloud for scalability
- Hybrid for organisations in transition
- Multi-site deployments supported
InfinityOne vs Microsoft Teams vs Zoom
Here is how InfinityOne compares to the most common alternatives:
| Feature | E-MetroTel InfinityOne | Microsoft Teams | Zoom |
|---|---|---|---|
| Team messaging | ✓ Yes | ✓ Yes | ✓ Yes |
| Video conferencing | ✓ Yes | ✓ Yes | ✓ Yes |
| Built-in PBX telephony | ✓ Yes | ✗ Add-on required | ✗ Add-on required |
| On-premises deployment | ✓ Yes | ✗ Cloud only | ✗ Cloud only |
| Preserves existing phone system | ✓ Yes | ✗ Full replacement | ✗ Full replacement |
| SMS integration | ✓ Yes | Limited | Limited |
| Mobile & desktop app | ✓ Yes | ✓ Yes | ✓ Yes |
| Single identity across devices | ✓ Yes | Partial | Partial |
| Avaya migration path | ✓ Direct | ✗ No | ✗ No |
| Hybrid & multi-site support | ✓ Yes | Partial | Partial |
How to migrate from Avaya Spaces to InfinityOne
Migration does not have to be disruptive. Most organisations complete the transition in three phases:
Assessment
Identify which users relied on Spaces, map their workflows, and document existing phone infrastructure.
Deployment
E-MetroTel installs InfinityOne alongside your existing system. Users get the new app without losing their current extensions or numbers.
Cutover
Teams switch to InfinityOne on an agreed date. Training is minimal because the interface is built for simplicity.
Frequently asked questions
E-MetroTel InfinityOne is the most direct replacement for Avaya Spaces. It replicates the collaboration features of Spaces while adding built-in enterprise telephony that Spaces never had.
No. Avaya Spaces was permanently discontinued on September 15, 2025. It is no longer available for any organisation.
InfinityOne is a unified communications platform that combines team messaging, voice, video, SMS, and mobile calling into a single application, built on E-MetroTel's UCX phone system platform.
In many cases, yes. E-MetroTel is designed to preserve existing telephony investments, which means organisations often do not need to replace hardware as part of the migration.
Microsoft Teams is a strong collaboration tool, but it requires add-ons and third-party integrations for telephony. InfinityOne has a full PBX built in, supports on-premises deployment, and offers a direct migration path for Avaya customers without requiring a complete infrastructure replacement.
