1. A system of facilitating computer telephony integration between customer relationship management (CRM) applications on client computing devices in a contact center environment, comprising: a client computing device in the contact center environment having a user workstation, the user workstation including a contact toolbar application, a first CRM application, and a second CRM application to provide computer telephony integration data for display by the client computing device; the contact toolbar application executing on the client computing device to publish a connection point within the user workstation; the client computing device executing a connector plugin of the first CRM application to identify the connection point and to establish a first connection with the connection point; the client computing device executing a connector plugin of the second CRM application to identify the connection point and to establish a second connection with the connection point; and the user workstation establishing an integration channel via the connection point between the contact toolbar application, the first CRM application, and the second CRM application, for real time exchange of the computer telephony integration data between the contact toolbar application and at least one of the first CRM application and the second CRM application.