WhatsApp has reportedly disabled the much-hyped voice-calling feature 
soon after releasing it for select users. Initially the feature was passed on to friends through an invite by making a WhatsApp call.
AndroidPolice report says, WhatsApp version 2.11.528 from the Play store and version 2.11.531 from the official website showed the caller icon on their app, and users were allowed to make Internet calls and pass on the invitation too.
Users who have already activated the feature can make calls but the option cannot be activated for others anymore as WhatsApp has disabled the invitation feature. Reports suggested WhatsApp had shut down the invite feature. Majority of users have given positive feedback on the call quality through WhatsApp.
WhatsApp is already quite popular as a messaging application and it can make it to a higher level with the much-awaited voice calling feature. Other messaging apps that compete with WhatsApp, like Viber, BBM and Hike, already offer this feature. But the new feature will disturb Indian telecom service providers furthermore as they are quite annoyed with the OTT services already.
WhatsApp has also not made any official announcement on the update yet. The best possible chances are WhatsApp launched the feature for a limited time as a beta testing feature and is expected to roll out the official update soon.
