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When a call is put on hold with the Hold softkey and the duration exceeds the holdreversion
timeout limit, CUCM generates alerts to the phone to remind the user to handle
the call. Hold reversion is illustrated in Figure 16-8.
Figure 16-8 Hold Reversion
The types of alerts that are generated at the phone for reverted calls depend on the
capabilities of the phone device. CUCM provides the following alerts when the Hold
Reversion feature activates, depending on the capabilities of the phone and the firmware
release that is installed:
■ The phone rings once or beeps once.
■ The status line briefly displays “Hold Reversion” for the reverted call at the user phone.
■ The LED next to the line button flashes continuously on the phone handset, like other
alerting operations.
■ A “wobbling” handset icon displays for a reverted call.
Two timers in CUCM specify the alert operations for hold reversion:
■ The Hold Reversion Duration timer specifies the wait time before a reverted call alert
gets issued to the phone of the holding party.
■ The Hold Reversion Notification Interval timer specifies the frequency of the periodic
reminder alerts to the holding party phone.
CUCM
A B
C
IP
IP IP
1 A Calls B
3 A Calls C
2 Call Hold B
Sends Hold
Reversion
Message to A
After Timeout
4
Initial Call Hold Reversion Second Call
Hold Reversion 415
A Hold Reversion Duration timer setting of 20 and a Hold Reversion Notification Interval
timer setting of 30 means that CUCM will issue the first alert after 20 seconds and a
reminder alert every 30 seconds thereafter.
You can configure hold reversion cluster-wide, as shown in Figure 16-9. Change the Hold
Reversion Duration timer in the Service Parameters window to a value greater than 0. If the
default system setting for reminder alerts is not desired, configure the Hold Reversion
Notification Interval timer in the Service Parameters window. The default value specifies
30 seconds.
Figure 16-9 Cluster-Wide Hold Reversion Configuration
To disable hold reversion for a line when the system setting is enabled, enter a value of 0
for the Hold Reversion Duration timer in the Directory Number Configuration window. If
the field is left empty, CUCM uses the cluster timer setting.
To enable hold reversion for a line when the system setting is disabled, set the Hold
Reversion Duration timer in the Directory Number Configuration window to a value
greater than 0.
To enable reminder alerts, configure the Hold Reversion Notification Interval timer to a
value greater than 0 in the same window or leave it blank to use the cluster setting.
To configure hold reversion timer settings that differ from the cluster settings when hold
reversion is enabled, enter different values for the hold reversion timers in the Directory
Number Configuration window.
Figure 16-10 shows the hold reversion DN configuration.
Figure 16-10 Hold Reversion Directory Number Configuration
Call-focus priority specifies whether an incoming call or reverted call has priority.
Incoming calls have priority by default.
416 Chapter 16: User Features
An administrator configures the Reverted Call Focus Priority setting for a device pool,
which is then assigned to a phone in CUCM Administration. The focus priority for the
device pool that is associated with the phone applies to reverted and incoming calls that
appear on the same line or on different lines on the phone device.
A priority value of Default means that incoming calls have priority. A priority value of
Highest means that reverted calls have priority. The reverted call focus is configured at the
device pool level,