Swisscom regularly updates HD phones with the latest firmware, so that you can continue to benefit from new features and improvements once you have made your purchase. This happens automatically.
Firmware is the software which provides HD phones with all their functionality. This site informs you about the latest firmware versions, the new features they introduce, and the improvements they make.
Current Firmware (November 2016)
Sporadically missing call signal in Ecomode improved
Continuous synchronisation prevented for more than two registered Ascona HD-Phones