Have IPO SE 11.1.2.0 Primary & Secondary severs, was altering the SM trunks to TLS, I setup SCEP manually and produced the Certs, enabled TLS and trunks straight up. Then noticed issue with Voicemail Pro, in system status can see Voicemail Type None against both servers. Tried changing the Password in Manager Security Settings and in the Web Manager Voicemail Pro - System Settings (Only offered for the Primary server, couldn't use the VMPro Client for either server as the Password field was greyed out).