Resync At A Specific Time; Configurable Schedules - Cisco 8800 Series Manual

Resync at a Specific Time

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Resync at a Specific Time
The Resync_At parameter allows the phone to resync at a specific time. This parameter uses the 24-hour
format (hhmm) to specify the time.
The Resync_At_Random_Delay parameter allows the phone to resync at an unspecified delay in time. This
parameter uses a positive integer format to specify the time.
Flooding the server with resync requests from multiple phones that are set to resync at the same time should
be avoided. To do so, the phone triggers the resync up to 10 minutes after the specified time.
For example, if you set the resync time to 1000 (10 a.m.), the phone triggers the resync anytime between
10:00 a.m. and 10:10 a.m.
By default, this feature is disabled. If the Resync_At parameter is provisioned, the Resync_Periodic parameter
is ignored.

Configurable Schedules

You can configure schedules for periodic resyncs, and you can specify the retry intervals for resync and
upgrade failures by using these provisioning parameters:
• Resync_Periodic
• Resync_Error_Retry_Delay
• Upgrade_Error_Retry_Delay
Each parameter accepts a single delay value (seconds). The new extended syntax allows for a comma-separated
list of consecutive delay elements. The last element in the sequence is implicitly repeated forever.
Optionally, you can use a plus sign to specify another numeric value that appends a random extra delay.
Example 1
In this example, the phone periodically resyncs every 2 hours. If a resync failure occurs, the device retries at
these intervals: 30 minutes, 1 hour, 2 hours, 4 hours. The device continues to try at 4-hour intervals until it
resyncs successfully.
Resync_Periodic=7200
Resync_Error_Retry_Delay=1800,3600,7200,14400
Example 2
In this example, the device periodically resyncs every hour (plus an extra random delay of up to 10 minutes).
In the case of a resync failure, the device retries at these intervals: 30 minutes (plus up to 5 minutes). 1 hour
(plus up to 10 minutes), 2 hours (plus up to 15 minutes). The device continues to try at 2-hour intervals (plus
up to 15 minutes) until it successfully resyncs.
Resync_Periodic=3600+600
Resync_Error_Retry_Delay=1800+300,3600+600,7200+900
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
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Cisco IP Phone Provisioning