When configuring Cisco UCM, which configuration enables phones to automatically reregister to a Cisco UCM publisher when the connection to the subscriber is lost?
I believe this should be D. Cisco UCM Group dictates which server to register to. SRST pertains to the router registration when all servers have failed.
SRST is filed under device pool settings : " SRST Reference: This is an optional field. Survivable Remote Site Telephony is a redundancy feature available on Cisco IOS routers that allows Cisco Unified IP phones registered to the Cisco Unified Communications Manager from remote office locations to register to their local router during WAN network failure events. The SRST reference determines where those phones should register during these situations"
So answer is D
Question can be answered in both ways:
(1) what i can configure on device configuration page (device pool)
(2) for redundancy (Cisco UCM Group)
Help this page on CUCM answers this:
About Cisco Unified Communications Manager Group Setup
A Cisco Unified Communications Manager Group specifies a prioritized list of up to three Cisco Unified Communications Managers.
...
Each device pool has one Cisco Unified Communications Manager Group that is assigned to it.
When a device registers, it attempts to connect to the primary (first) Cisco Unified Communications Manager in the group
that is assigned to its device pool.
If the primary Cisco Unified Communications Manager is not available,
the device tries to connect to the next Cisco Unified Communications Manager that is listed in the group, and so on.
Thinking its the device pool. The UCM groups are listed in the device pools and each phone has a device pool that it is associated with. I think this is a terrible question because the PUB may not be running Call Manger service anyway.
Answer D. Call Manager group dictates the failover CUCM order.
upvoted 3 times
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