Had a customer who was wanting to integrate their custom CRM application with CUCM. Easiest way to do this was via the Webdialer. Their current setup was to use a modem placed in front of an analogue phone which was then controlled by the CRM app via a dialer string.
To use the webdialer process we can fire off the the URL 'https://x.x.x.x:8443/webdialer/Webdialer?destination=0123456789' from within the application to cause a call to kick off. (Note that you need to have logged the end user into webdialer at least once previously so that settings and login details are saved).
Next request was to be able to hang the call up via a button in the app so that the call center agent never has to physically touch the phone (or softphone) to hang up calls.
After mucking around with Fiddler, seems that you can use the following url string to accomplish the hangup: 'https://x.x.x.x:8443/webdialer/Webdialer?cmd=doEndCall'. This will hang up the call (assuming there is one in progress) on the device managed by the webdialer setup. If no call is in progress then nothing untoward happens.
Now to get the CRM app updated with this code and we'll see how it goes.
