BlackBerry Messenger The Good experience in old day

BlackBerry Messenger (BBM) is a proprietary Internet-based instant messenger and videotelephony application included on BlackBerry devices that allows messaging (and videocalls for BlackBerry 10 smartphones) between BlackBerry users. It was developed by the manufacturer of the BlackBerry, BlackBerry Limited (formerly known as Research In Motion Limited (RIM)). Messages sent via BlackBerry Messenger are sent over the Internet and use the BlackBerry PIN system, so communication is only possible between BlackBerry devices.
The service communicates over the phone's Internet connection using the mobile phone network. A wireless LAN ("Wi-Fi") network connected to the Internet may also be used to send messages, most service providers allow sign-in to BlackBerry Messenger if you have a BlackBerry data plan.^[3]
Exchanging messages is possible to a single person or via dedicated discussion or chat groups, which allow multiple BlackBerry devices to communicate in a single session. In addition to offering text-based instant messages, BlackBerry Messenger also allows users to send pictures, voicenotes (audio recordings), files, location on a map and a wide selection of emoticons and the top spec devices can even make videocalls over the WiFi or mobile network.
With the release of BlackBerry Messenger 5.0, BlackBerry allows users to use a QR Code to add each other to their respective friends lists rather than using only numeric PIN identification or an email address associated with the user's BlackBerry. Recent BlackBerry devices can also exchange BBM contacts using Near Field Communication technology.
The release of BlackBerry Messenger 6.0 introduced additional traits. This update is focused on social communication mediums, including 'BBM Connected Apps', which allow the user to invite friends to share their favourite BlackBerry Applications.
With the release of BlackBerry Messenger 7.0 in December 2012, voice chat was introduced. The new feature is called BBM Voice Call.

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