I am running IPCCX 7.0(1)_Build109 in VMWare Server 2.0. The IPCCX server OS is Windows 2003 Enterprise Server SP2. I have gone through the installation steps to install IPCCX and configure RmCm, the Trigger, CTI ports, resources, etc. I have configured One Button Login on my CCM 7.0.2 server (Pub and Sub).
Agents can log in and IPCCX sees the agents. Inbound calls to the trigger (5000) can be seen hitting IPCCX by using Tools>Real Time Reporting>Report and then looking at the variuos reporting options.
The problem is that the inbound calls never make it to the agents. I receive a verbal error message that states "I sorry we are currently experiencing system problems and are unable to process your call. Please try again later."
Did you check whether JTAPI trigger is registered on your CallManager? You can go to CCM Admin page, then phone->CTI route point and see if the trigger is registered. If not, try resetting the CTI RP.