Where it runs
| Role | Supported | Notes |
|---|---|---|
| Telyzer Server | Windows Server 2016, 2019, 2022, 2025; Windows 10 (1809 or later, LTSC 21H2); Windows 11 — 64-bit | PostgreSQL 17 and .NET 10 need Windows 10 / Server 2016 or later, so Windows Server 2012 R2 and Windows 7 cannot host the server. |
| Telyzer Relay (remote sites) | Windows 7 SP1 to 11, Windows Server 2008 R2 SP1 to 2025, Linux | The same relay as the cloud, pointed at your server. |
| Users | Current Chrome, Edge, Firefox or Safari, on PCs and phones | Nothing is installed on users' PCs. |
A virtual appliance (Hyper-V, VMware, Proxmox) and a Linux / Docker edition are planned for customers whose only host is older or who prefer Linux; ask us if you need one.
How big a server
| Your size | Processor | Memory | Disk (SSD) |
|---|---|---|---|
| Up to 300 extensions, 1 site | 4 vCPU | 8 GB | 100 GB |
| Up to 2,000 extensions, several sites, contact centre up to 50 agents | 8 vCPU | 16 GB | 300 GB |
| Larger | Talk to us: the database can run on its own server. |
Note: These are first figures; they are confirmed on test servers (Windows Server 2016 to 2025, Windows 10 and 11) before the first release. Setup checks that the server has at least 8 GB of memory.
What grows on disk
- The database: call records, CRM records and contact-centre conversations. It grows with your call volume and the history you keep.
- Attachments (
C:\ProgramData\Telyzer\attachments): files in contact-centre email. - Logs (
C:\ProgramData\Telyzer\logs): 10 MB per file, 14 days, at most 1 GB. - Backups: keep them on another disk or a network share, not only next to the database.
System → Health shows the disk that holds the data folder: it turns to Needs attention at 85% used and Not working at 95%. Call records keep arriving and need space, so act at the first warning: free space, or move the data folder to a larger drive.
Network
- A fixed IP address and a DNS name for the server.
- Phone systems on the same network send straight to the server; remote sites use a relay over HTTPS (see the IT security sheet for ports).
- Internet access is optional: without it, licences are activated with a request file and updates are uploaded by hand.