| Cisco Unified Attendant Console Edition | Premium Edition | Enterprise Edition | Business Edition | Department Edition |
|---|---|---|---|---|
| Number of Operators | 50 | 40 | 12 | 2 per department |
| Directory Size | 100,000 | Full Cisco Unified Communications Manager directory | 500 | 150 per department |
| Number of Queues | 100 | 50 | 3 | 1 per department |
| Directory Source | Cisco Unified Communications Manager, Active Directory, or iPlanet | Cisco Unified Communications Manager | Cisco Unified Communications Manager | Cisco Unified Communications Manager |
| Built-in Server Resilience | Yes | No | No | No |
| Music on Hold | Different music in different queues | Different music in different queues | Same music for all queues | Same music for all departments |