The latest version is TelServer v1.7.4 (Build 20111206-1029).
Some transfer calls (involving several call appearances) were leading the widget to provide the wrong call information.
In the TelServices windows : using 'drop' after 'alternate' was always rejected because the TelServices window always pass the secondary number to the server.
TelServices window : the TelServices window can bother the user because it can stay in the middle of the page. Now, when the user scrolls so that the TelServices window is no more visible, then it will still be made visible but always be hooked in the top left angle of the page.