Users are eagerly waiting for the voice calling feature of WhatsApp.
According to reports, voice calling feature was today silently introduced on all Android handsets for few hours. The feature was only available for the Android handsets enabled with 2.11.528 version of WhatsApp.
The testing phase of the voice-calling feature originally began on February 1, 2015. Last time, voice calling feature was rolled out by WhatsApp for only select users, who are able to access it on an invite basis.
The features of calling options are as follows:
One can call his/her friends for free.
If the opposite contact has an older version, WhatsApp notifies the user to update it.
The surprise from WhatsApp reportedly came to test the functionality of voice calls on 2G and 3G network.