The problem? Their legacy Cisco Unified Communications Manager (CUCM) cluster—three physical MCS servers, affectionately nicknamed "Big Yellow," "Old Blue," and "The Grouch"—had finally given up. Big Yellow had suffered a catastrophic RAID failure at 4:00 PM. The vendor quoted two weeks for a replacement part.
Database replication confirmed.
"Move it to the cloud," her boss had barked before leaving for the day. "You said virtualization was possible." cucm virtualization
The Tokyo front desk called. "Phones are up. Better than before, actually. Call transfers are instantaneous." The problem