PortSIP PBX Features
Features
Free Edition
Licensed Edition
Number of the maximum of extensions
10
Base on the license
Number of Simultaneous Calls Supported
3
Unlimited
Linux OS: CentOS, Debian, Ubuntu
Y
Y
Windows OS: Win 10, Windows Server 2008, 2012, 2016, 2018
Y
Y
Docker container deployments
Y
Y
Kubernetes
N
Y
Cluster deployments
Y
Y
High Availability
Y
Y
Congestion Management
Y
Y
Multi-Tenant
Y
Y
Admin can switch to tenant role to manage the tenant's resource and switch back by one click, no need sign out and sign in again
Y
Y
Sending file, picture
Y
Y
Sending screenshot
Y
Y
Presence
Y
Y
HD audio call
Y
Y
HD video call
Y
Y
Rich text chat
Y
Y
Audio conference
Y
Y
Video conference
Y
Y
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