Some Nokia Lumia owners can access a new caller and SMS blacklist feature that will become available to Windows Phone 8 Lumia devices as and when carriers rollout Nokia's latest 'Amber' update.
Lumia owners with the Amber update that Nokia is rolling out this month via carriers can begin blocking unwanted calls with a new feature in an update to the 'extras and info' app.
To begin blocking calls from certain numbers, people can scroll through their list of latest calls in the 'phone' tile and long-tap on the entry, which offers the option to 'block number'. After confirming, the device will block calls and text messages from that number.
Currently only the, 925 and have the option to download the app update from the Windows Store (since they ship with Amber).
According to Nokia, carriers will release Amber in August, which appears to be being released alongside Microsoft's own.
Once Lumia owners have Amber, they will be able activate the blacklist feature and block calls, for example, from all 'private' numbers — often used by sales call centres.
The blacklist can be managed via 'settings' --> 'call and SMS filter', which displays how many calls and messages have been blocked and offers a chance to remove numbers mistakenly added to the list. The filter can also be set to block calls during certain periods. Other management features include activating a Live Tile and notifications for the filter.
The Amber update should help Nokia align the experience between already-released devices and newer Lumia devices like the 625.
For example, the Nokia Pro Camera that ships with the Lumia 1020 will be available to the Lumia 920, 925 and 928 with Amber, as are the image processing software updates it flagged at the release of the Lumia 925.