All improvements and fixes at a glance:

• The function for restarting the telephone system has been removed from the Admin interface.
  (Background: In the event of problems, restarts cause additional load on our infrastructure, especially if many systems reboot at the same time. If required, we can restart the telephone systems)
• You can now select several mobile devices in the end device list and send the e-mail for pairing to all associated users with one click.
• The SIP registration of Gigaset DECT gateways has been improved.
• In the REST API, the /connector/action endpoint has been given a "background attribute". This means that the job is executed in the background and does not wait for the return code.