Lumia 640 and 640 XL Getting Voice Over LTE, More in New Software Update

Microsoft is releasing software updates for the newly-released Lumia 640 and Lumia 640 XL handsets, adding Voice over LTE support and other new features. It’s not clear which markets are receiving this update, but my Lumia 640 review unit—on Cricket here in the US—is not yet delivering the update.

Credit where credit is due: I first saw this news on Windows Central.

According to a Microsoft support note, the Lumia 640 and Lumia 640 XL are both being updated from OS version 15127 to 15148. The firmware is updated to version 15184.36xxx, but remains at the Denim functional level.

Here’s what’s new.

Lumia 640

Voice over LTE support enabled for selected operators.

Native Wi-Fi calling support enabled for EE UK and T-Mobile USA. (T-Mobile isn’t even selling the 640 yet, so this is interesting.)

Additional improvements to stability, audio quality, Wi-Fi and cellular connectivity, national roaming, and more.

Lumia 640 XL

Voice over LTE support enabled for selected operators.

Native Wi-Fi calling support enabled for EE UK only.

Additional improvements to stability, audio quality, Wi-Fi and cellular connectivity, national roaming, and more.