Explain the goals of Customer Relationship Management. Using Teboul Model, explain how BLACKBERRY phone company was not able to maintain the customers’ loyalty. Which companies are able to manage a good relationship and secured the customers from BLACKBERRY?

“BlackBerry was one of the most prominent handphone vendors in the world, well known for the keyboards on its handphones. At its peak in September 2013, there were 85 million BlackBerry subscribers worldwide. However, BlackBerry lost its dominant position in the market and its numbers had fallen to 23 million in March 2016.”