ProCall 8 - Release Notes 8.9.3

Release date	03.03.2026
Type	Quality Update
Version	8.9.3.11507
Security advice	This update fixes a security-critical bug related to the underlying OpenSSL version in UCWeb.

This update fixes a security-critical bug related to the underlying OpenSSL version in UCWeb.

The robustness of communication with the licence server has been improved.
The stability of the UCServer has been improved, including when accessing the MetaDirectory.
The faulty INVITE during bridged call transfer (e.g. with OSB trunk) has been fixed.
Numbers and letters can now be used for SIP registration on all supported PBX systems.
The UCServer no longer deletes PUSH registrations when restarting or in the event of loss to UCConnect.
If the members of a group call come from different locations, the call is delivered to all participants and can be accepted.
Please note: Whether this call can be transferred to other participants depends on the configuration of the telephone system.
When using a UCServer collection group with agent function, the tooltip for the contact in the favourites now shows which agent groups the user is a member of and whether they are logged in or not.
When creating SIP registrations with a "-" in the name, "-" is no longer automatically interpreted as an indication for creating multiple SIP registrations.

The crash of ProCall Desktop for Windows when right-clicking on a journal entry has been fixed.
To improve the problem of low volume levels at the beginning of a softphone call, the AGC2 stack was activated. This is a module in WebRTC that was developed to automatically adjust the volume of microphones in real time.
If ProCall Desktop for Windows is started without the main window and a chat message is received, clicking on the "bubble" will open the chat with the message.