
3-9
Cisco IP Telephony Network Design Guide
78-11103-03
Chapter 3 Cisco CallManager Clusters
Cisco CallManager Redundancy
Device Pool Configuration
You can use device pools to scale and simplify the distribution of
Cisco CallManager redundancy groups. A device pool allows you to assign the
following three primary attributes globally to devices:
• Region—Required only if multiple voice codecs are used within an
enterprise.
• Date/time group—Specifies date and time zone for a device.
• Cisco CallManager redundancy group—Specifies a list of up to three
Cisco CallManagers, which can be used for call processing in a prioritized
list.
Figure 3-4 shows an example of a device pool configuration screen.
The calling
search space for auto-registration is relevant only if auto-registration of IP phones is
enabled. This can be used, for example, to limit access of the PSTN to auto-registered
devices. Auto-registration is a valuable tool for the initial provisioning of IP phones.
Figure 3-4 Device Pool Configuration Screen
40787
Comentarios a estos manuales