Hi Ian,if issue persists after trying the above, Please pass me the device logs by using PRT (Problem Reporting Tool).Regards,Gokul

Hi Ian,Before registering the device with CUCM can you please Reset it once (Which is zero config) and register it with CUCM (Just a try) ?Please share me the result after you execute this.Thanks,Gokul

Hello Ian,Can you please share me the steps you have followed on 7821 and 7841 and please attach the screenshot of the issue from your phone.Regards,GK

Hello Ian,We have tried the same with 78XX and with 88XX devices and its not reproducible from our end. Is the issue reproducible from your end ? If yes, can you please pass me the steps you have followed to reproduce this issue ?Regards,GK

Hello Georg,This issue has been resolved via DevNet ticket https://developer.cisco.com/dpTroubleTicket/editAdmin/1176All the above scenario is done with IP Communicator. Here the bad thing is IP Communicator won't support many features including Wisp...