WhatsApp is rolling out a calling feature on the app. While some have been able to access it already, CEO Jan Koum says it will be generally available sometime in 2015. The service is being tested to see if the servers can handle it, according to theCake.
Calling may be already possible for those who have the 2.11.531 version of the app that can be downloaded from the app’s web portal. It is best if one is invited by another user who already has the calling feature working. WhatsApp’s calling feature was reported as available to some who have an Apple iOS device. Some of those who have the Android WhatsApp app reported receiving calls from users who had the voice feature on. The reason some have access and not others, as speculated by TheTimes of India, is that WhatsApp might have set a limit on the number of people can be invited.
When the calling feature is more widely available, it will feature distinct screen for dialing a voice call to contacts, call logs and ongoing calls. The chat window displays a calling button, and there is capability to put the call on the loudspeaker or mute it. This is perhaps the biggest news for WhatsApp since it was acquired by Facebook. While critics thought Facebook had overpaid for the messaging app, it now seems to be worth every penny.