State of knowledge

January 2025 
ProCall DataCenter from 2410.0 

Preview! 

The conference server feature is available as a preview version. There are still limitations in terms of functionality and quality. We are continuously working on further development and do not yet recommend its use in productive environments.
It has only been tested in conjunction with a Mitel MiVoice MX-ONE and SIP Extension connection (SIP subscriber registration, individual registration) .
The information provided here is still provisional and is constantly being updated.

System requiremenets

This feature is currently only available in conjunction with ProCall DataCenter >= 2410.0 and the use of the corresponding ProCall Client for Windows.

How the conference server works

The ProCall conference server enables softphone conferences with more than 3 participants. If the conference server is activated, all conferences (= 1:n softphone calls) are created in the server. If a ProCall client initiates a conference, a conference room is created in the conference server. The participants are connected to this conference room by the UCServer using "blind transfer". The total number of participants on the conference server is limited by the number of "simultaneously used voice channels" assigned to the conference server. The number of individual conference rooms and the number of participants per conference room is not limited.

If there are no 2 free voice channels available when creating a conference, the conference is created as a 3-party conference on the client for Windows. It is not possible to add further participants in this case.

Setting up the conference server

The following describes how to set up the conference server in UCServer.

SIP lines for the conference server

SIP lines with the desired number of voice channels must be made available for the conference server. Individual SIP registrations or SIP trunks registered in the UCServer can be used for this purpose. These are connected to the UCServer via the familiar "line dialog". The number of available channels depends on the settings in the telephone system.

Example screenshot: UCServer Administration Telephony - Lines - Overview of lines with line group SIPAV

Lines connected via a TSP cannot be used.

The assigned numbers must be numbers that can be reached internally. The numbers do not have to be reachable from outside.

Please note the following when setting up and using the conference server:

The conference server requires processor power for the MediaServer service to operate a conference. We do not yet have any information on the system resources required. (as of October 2024)

Configuration of the conference server

To set up the conference server, navigate to the "Telephony - Conference server" menu on the left. Activate the conference server to set it up. At least one phone number must be assigned to the conference server.

Example screenshot: UCServer Administration - Telephony - Conference server - Activate conference server - Select lines

When assigning the phone number, you must specify how many voice channels are available on the line.

Any number of SIP trunks or individual lines can be assigned. The total number of available voice channels is then available for the conference server and is dynamically distributed across the conference rooms and lines currently required.

Please ensure that you only assign lines to the conference server that are not assigned to an owner.

ProCall Client for Windows

If the conference server is activated, additional participantscan be added during an ongoing call.
The conference room is generated automatically by ProCall.

Starting a conference via consultation from the call window

As before, you can start a conference from a consultation call in the call window:

Example screenshot: ProCall call window - consultation - conference

With conference server: Conference room is created automatically

Durch die Bereitstellung des Konferenzservers wird von ProCall automatisiert ein Konferenzraum erstellt. Für diesen Konferenzraum wird dem Ersteller der Konferenz ("Konferenz-Master") ein neues Gesprächsfenster angezeigt. Dies zeigt dem "Konferenz-Master" die Anzahl der aktuellen Teilnehmer an.

Beispiel Screenshot: ProCall Ansicht des Konferenz-Masters - Der automatisch erstellte Konferenzraum mit Anzahl Teilnehmer wird angezeigt

Add conference participants

The "conference master" can call other participants from the ProCall window via a parallel call and then add them to the conference. An incoming call can also be added to the conference.

Example screenshot: ProCall conference in the call window - Call a new participant and then add them to the conference room

Leaving the conference call

Each participant (including the conference master and conference call window) can leave the conference room without the conference being ended.

The conference room is only closed when the last participant has hung up and left the conference.