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Unison Server™

Unison Server™ is the next generation of messaging. It combines all major forms of communication on a single Linux server:

Unison Server

The server integrates many different components: e-mail; instant messaging and presence; an IP-PBX; a calendar server and an LDAP directory with contacts. Administrators manage everything via Unison Control Panel. Click to view the components and protocols we use.

What's inside Unison Server

PBX / telephone

Call center-class IP-PBX built in, with patented scaling technology


Directory / contacts

LDAP with global, departmental and personal address books


E-mail / e-mail security

High-performance e-mail server with antivirus and antispam built in


Instant messaging

Integrated XMPP-based instant message and presence server


Calendar server

Advanced CalDAV-based calendaring with group scheduling

Managing Unison Server

Unison Control Panel™

One admin panel controls the corporate directory, telephone, email and more


Components / protocols

View Unison's components, protocols and RFCs

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This Unison software is protected under U.S. and international law; technology protected under US Patent No. 7286661.