Dear All,After a crash during the upgrade from CUCM 12.0 to 12.5(SU8), the Publisher needs rebuilding. The backup TAR file isn't detected in DRS for restoration, so a temporary export file was used. Currently, phones are registered to the Subscriber....

Dear Team,I'd like to discuss two scenarios and seek suggestions on how we can smoothly upgrade or migrate to CUCM 15, considering that most deployments have an 80GB disk.Upgrading from CUCM 12.X to 15:Initial steps involve upgrading to version 14, f...

Dears All,In our CUCM infrastructure, we are planning to transition from Jabber to Webex. During this migration, it's crucial that Webex maintains the same directory numbers, and parallel ringing functionality is retained. The objective is to ensure ...

Dears,For a Webex device connector do we need to allow the firewall communication from endpoints or only from application is enough?