350-801 · Question #15
Which configuration step is necessary for a Cisco SIP phone to synchronize its time with a specific source?
The correct answer is B. Add a phone NTP Reference to the date/time Group. Cisco SIP phones derive their time from the Date/Time Group they are assigned to in CUCM. To point a SIP phone to a specific NTP server, an engineer must add a Phone NTP Reference (which defines the NTP server IP address and authentication mode) to the Date/Time Group. When the…
Question
Which configuration step is necessary for a Cisco SIP phone to synchronize its time with a specific source?
Options
- AChange the Time Zone from "America/Los_Angeles" to "Etc/GMT+8".
- BAdd a phone NTP Reference to the date/time Group.
- CAssign the device to the correct region.
- DChange the time format from 24-hour to 12-hour.
How the community answered
(23 responses)- A4% (1)
- B91% (21)
- D4% (1)
Explanation
Cisco SIP phones derive their time from the Date/Time Group they are assigned to in CUCM. To point a SIP phone to a specific NTP server, an engineer must add a Phone NTP Reference (which defines the NTP server IP address and authentication mode) to the Date/Time Group. When the phone registers, CUCM provides the NTP server information from the Date/Time Group to the phone via its configuration file. Simply changing the time zone or time format format only affects display preferences, and assigning a device to a region controls codec/bandwidth - neither of those controls the NTP source.
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