WhatsApp, complete with its new VoIP capabilities, is expected to be available to Windows Phone users soon, according to latest reports.

Those who are part of the WhatsApp beta testing have received the in-app calling feature for Windows Phone devices, which was made available to iOS, Android and Blackberry users earlier this year.

The beta version of the app, known as version 2.12.38, indicates Windows Phone users will have the Call Tab that keeps track of the recent call history, including incoming, outgoing and missed calls.

Currently, only those in the beta testing group have access to the app on the Windows Phone. This group will ensure any remaining bugs are fixed before the app is released to all users.

There is no word yet on when the beta will be released as a final version and made available to users with the full version of the app.

Developers have showed a lack of interest in the Windows Phone platform, and the Windows Phone Store still lacks a number of other social media apps, such as Snapchat.

Recently, WhatsApp announced the messaging platform has attracted 800 million active monthly users.