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WebDialer Redirector Service

The Redirector Service is a Java-based Tomcat service which locates a Cisco Unified Communications Manager (Unified CM) cluster in response to a request made by a Cisco WebDialer User. It then redirects the request to the specific Cisco WebDialer server located in that User’s Unified CM designed to use the HTML interface for Cisco WebDialer.

Example of Cisco WebDialer Using the Redirector Service

Assume we have 3 Unified CM clusters in 3 different cities: San Jose (SJ), Dallas (D), and New York (NY). Each cluster has 3 servers (CM1..CM3) with Cisco WebDialer installed and properly configured.

When a user in San Jose clicks on a telephone number in a corporate directory using a Cisco WebDialer environment, here is what happens:

  1. The client application sends an initial makeCall HTML request to the Redirector Service hosted on a Unified CM server.
  2. If this request is received for the first time, the Redirector Service reads the Cisco WebDialer server cookie and finds it empty. For repeated requests, the Redirector Service reads the IP address of the Cisco WebDialer server that previously serviced the client and sends an isClusterUser HTML request only to that server.
  3. The Redirector Service sends a response that asks for information, which results in the authentication dialog box opening for the user.
  4. The user enters the Unified CM user ID and password and clicks the Submit button.