I have Unity Connection 7 with CUCM 6.1 and SCCP integration. Problem is all the ports register in CUCM but the IP address of Unity Connection is not shown. IP address is shown as 0.0.0.0 in CUCM. I can log into Unity but unable to leave messages or change greetings. I have imported users in from CUCM without a problem, but how come the password does not migrate across from CUCM? It is better to use SIP or SCCP for integration with CUCM?