I recently installed an MICS with 6.1sw and a PRI already installed. The customer previously had an MICS with 2ea CID Cards. The system is working as designed except for Caller info. When the receptionist answers the call and transfers the call or parks the call, the caller ID info doesn't follow. BTW, they wanted the Prime number to appear on all phones and ring on select phones besides the receptionist. Also, I've never heard of this, but is there a way to program PARK buttons on the phones. I was asked to inquire.