Is it possible to change the skin on the Express Talk soft-phone so as to restrict the functionality available to end-users? For example, is it possible to limit users simply to initiating and terminating a call ('hang up') to a SIP address from a predefined list of call recipients? (The scenario we're picturing is a kiosk environment where all the call recipients would be known in advance and we would pass in the SIP address programmatically.)
I'm running a basic version of the Express Talk 3.01 soft-phone client for evaluation purposes.
Any information you could share would be greatly appreciated!