Current Version 12.9.0.53429 Build 303429, issue has occurred on 1 version higher also.
Issue is the green call button will stop working, when clicked it will not call, used for internal calls, works fine when used for external numbers.
Restarting jabber/logging in and out or even changing the device for calls from handset to pc and back to handset will resolve the issue but only briefly.
When click it will act as if it has been click but nothing will happen, the open chat window button on the other hand works fine.
The issue occurs when pressing the call button from the contacts page, when searching a contact, when in the chat page and the call log.
All help appreciated
