Please implement the below script on every call(last of the call) to inform the customer regarding the Desktop version:

Sir/Madam, 

I like to take this opportunity to inform you we have successfully launched "Biz Analyst Desktop". You can experience the "New Change" with your existing Biz Analyst User ID & Password.

I can arrange a DEMO session from our experts on this. 

Tell me what time would you like to do this?