Configurable Schedules - Cisco SPA921 - - IP Phone Provisioning Manual

Creating Provisioning Scripts
Using Provisioning Parameters
Cisco Small Business IP Telephony Devices Provisioning Guide
If a resync operation fails because the IP Telephony Device was unable to retrieve
a profile from the server, if the downloaded file is corrupt, or an internal error
occurs, the device tries to resync again after a time specified in
Resync_Error_Retry_Delay (seconds). If Resync_Error_Retry_Delay is set to 0, the
device does not try to resync again following a failed resync attempt.
When upgrading, if an upgrade fails, a retry is performed after
Upgrade_Error_Retry_Delay seconds.
Two configurable parameters are available to conditionally trigger a resync:
Resync_Trigger_1 and Resync_Trigger_2. Each of these parameters can be
programmed with a conditional expression (which undergoes macro expansion). If
the condition in any of these parameters evaluates to true, a resync operation is
triggered, as though the periodic resync timer had expired.
The following example condition triggers a resync if Line 1 failed to register for
more than 5 minutes (300 seconds), and at least 10 minutes (600 seconds) have
elapsed since the last resync attempt.
$REGTMR1 gt 300 and $PRVTMR ge 600

Configurable Schedules

Profile resyncs and upgrades provide for automatic retries in case of failure, in
addition to periodic configuration updates. Time intervals are specified via three
parameters, which are usually specified as a specific interval duration, in seconds.
Starting with firmware version 3, these parameters allow the application-level
(macro time scale) retry schedule to be configured. These provisioning
parameters are:
• Resync_Periodic
• Resync_Error_Retry_Delay
• Upgrade_Error_Retry_Delay
These parameters accept a single delay value (seconds). The new extended
syntax allows for a comma-separated list of consecutive delay elements. Each
delay element consists of a deterministic delay value, optionally followed by a plus
sign and an additional numeric value, which bounds a random extra delay. The last
element in the sequence is implicitly repeated forever. For example,
Resync_Periodic
Resync_Error_Retry_Delay
= 7200
= 1800,3600,7200,14400
2
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