Yes you can have different users logged in from the phones. Calls to the hunt pilot will be delivered according the algorith configured. In conjuction with Hunt Groups you can also use call queueing feature offered by cucm 10. When enabled, callers hear an opening greeting, and greetings can be played to calls in queue. Review it here(there is a restriction broadcast algo can not be used with queuing - whcih makes sense): http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmfeat/CUCM_BK_F3AC1C0F_00_cucm-features-services-guide-100/CUCM_BK_F3AC1C0F_00_cucm-features-services-guide-100_chapter_01000.html#CUCM_RF_CFAC6592_00
Call Queuing Considerations
Unified CM provides call queuing natively to users so that callers can be held in a queue until hunt members are available to answer them. Callers in a queue receive an initial greeting announcement followed by music on hold or tone on hold. If the caller remains in queue for a period of time, a secondary announcement is played at a configured interval until the call can be answered—or until the maximum wait timer expires.
Call Queuing Operation
Cisco Unified Communications Manager Administration Considerations
The Call Queuing feature provides an enhanced capability to handle incoming calls to a hunt pilot number. When an incoming call reaches the hunt pilot, the following capabilities are provided:
A caller may be connected to an initial customizable greeting announcement before proceeding
If one or more line members are logged into the hunt pilot and are in an idle state, and if no calls are queued, then the call is extended to the line member that has been idle for the longest period of time
If no line members answer a call, then that caller will not be placed in queue. The call is routed to a new destination, or disconnected, based on the setting under "When no hunt members answer, are logged in, or registered"
Calls will be placed in queue only if all members are busy.
If a line member does not answer a queue-enabled call, that line member is logged off the hunt group only if the setting "Automatically Logout Hunt Member on No Answer" is selected on the line group page
While the caller is in the queue they may hear Music On Hold and a repeating (customizable) periodic announcement
Once a line member becomes idle, the caller with the longest wait time across multiple hunt groups is extended to the idle line member. If the idle line member does not answer the call, the caller is returned to their previous position in the queue
If a queued call exceeds its maximum wait time, it can be routed to another pattern or it can be disconnected, depending upon how the hunt pilot configuration is configured
If the maximum number of callers allowed in queue has been reached, any subsequent caller can be routed to another pattern or disconnected, depending upon how the hunt pilot configuration is configured
Line members can display the queue status of their queue-enabled hunt pilots (in other words, the hunt pilots with which they are associated). The queue status display provides the following types of information:
Hunt pilot pattern
Number of queued callers on each hunt pilot
Longest waiting time
Note
You can configure a maximum of 25 hunt pilots per hunt list in Call Queuing. If you exceed this limit, the queue status will not be displayed.
