I've never had trouble with the TSP in the past. I am trying to use a Windows 8 machine running a Windows 7 VM using Hyper-V. I am running the PBX software in the VM. I am running the latest version 11 of 3CX Phone and 3CX Myphone on the host Windows 8 machine. All regular functions calling the extension using 3CX Phone and MyPhone work, however there are no TAPI events with our monitoring application. It does not see the call. If I initiate the call from my monitoring application instead of 3CX PHone or MyPhone, I can see the outbound TAPI events for that call. But I can't see any inbound events. Are there issues with Windows 8 or with version 11? I just reconfigured everything to just connect from my Windows 8 machine to the Office PBX. Same issue. TAPI is not working properly.