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Unified Messaging with ixi-UMS Business

The unified messaging server ixi-UMS Business integrates fax, voice and SMS services into system environments such as Microsoft Exchange or HCL Domino. ixi-UMS Business is specifically targeted for companies with up to 100 employees and will win you over with its easy implementation and handling.


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Simple complete package for small and medium-sized companies


In addition to the existing e-mail function, the features fax, voice and SMS are setup and managed via a single integrated server-based platform. The mobile access is managed on this platform, the messages are retrieved directly here and are always on the current status.

With unified messaging, the workstation PC becomes a universal terminal for the user.



This allows users to manage all types of messages  within one single interface – directly from their workstation or from PC, tablet or mobile device. Sending and receiving fax, voice and short messages takes place in your usual messaging client, such as Microsoft Outlook or HCL Notes.

ixi-UMS Business integrates the additional functions into proven messaging system architectures such as Microsoft Exchange Server or HCL Domino via an SMTP connector. This keeps the installation and training costs low.

Features of ixi-UMS 6 Business
ixi-UMS Fax

ixi-UMS Fax

Fax (send and receive)

ixi-UMS, the powerful unified messaging server from estos supports the fax service (for fax group 3). This allows you to send and to receive faxes directly client/server-based from the workstation.

ixi-UMS Voice

ixi-UMS Voice

Your personal answering machine 

ixi-UMS can be used as an answering machine directly at the workplace, using individual announcements and listen to incoming voice messages directly at the workplace or from mobile phones.



Send short messages by SMS

ixi-UMS supports the SMS (Short Messaging Service) service. This allows you to send short messages client/server based directly from the workstation.

Mobile with ixi-UMS

Mobile with ixi-UMS

Mobile management and retrieval of UMS messages

Unified messages can be retrieved via ixi-UMS on PC, phone, tablet or smartphone. Access to the e-mail mailbox also allows access to the ixi-UMS messages automatically.

Easy, slim, economical and inexpensive

Easy, slim, economical and inexpensive

No computer hardware

You do not need powerful computer hardware because the ixi UMS unified messaging server uses the existing architecture with Message Transfer Agent, databases, and e-mail clients. Benefit from low follow-up and training costs.

Integration with ProCall Enterprise

The ixi-UMS Business Unified Messaging Server integrates with the ProCall Enterprise solution: Users can send faxes directly from their client or monitor. The technical handling is executed by the Unified Messaging Server ixi-UMS Business.

The estos ProCall Enterprise user can either select a contact in his client or monitor. If he clicks the right mouse button, the same actions are available to him. If he decides to choose "send fax", an e-mail window opens with the fax addressing: Now the user can write text, attach files or even both. The user receives the send report in his inbox.

More about ProCall Enterprise

Technical requirements 

PC-Server – Software

  • Microsoft Windows® Server 2019
  • Microsoft Windows® Server 2016
  • Microsoft Windows® Server 2012/2012R2
  • Microsoft Windows® 10
  • Microsoft Windows® 8.1


SMTP Connector for:

  • Microsoft Exchange (2019/2016/2013/2010)
  • HCL Domino from Release 8.5 onwards
  • All other SMTP-based messaging systems



Information material