Cisco Small Business Pro SPA3102 Administration Manual page 35

Introducing Cisco Small Business Analog Telephone Adapters
ATA Software Features
ATA Administration Guide
Feature
Register Retry
Enhancements
Description
The Register Retry Enhancements feature for SPA2102,
SPA3102, and PAP2T devices adds flexibility to the delay
timers that are activated when the SIP REGISTER of a
device fails. Once a SIP REGISTER failure response code
is sent, a delay timer is selected depending on the type of
registration failure response code. The delay timers can
be one of the following:
•
Reg Retry Random Delay—Random delay range (in
seconds) to add to the
retrying a SIP REGISTER after a failure. The default is 0,
which disables this feature.
•
Reg Retry Long Random Delay—Random delay range (in
seconds) to add to the
when retrying a SIP REGISTER after a failure. The default is
0, which disables this feature.
•
Reg Retry Intvl Cap—The maximum value to cap the
exponential back-off retry delay. The exponential back-off
retry delay starts with the setting found in the
Intvl
parameter and doubles it on every REGISTER retry after
a failure. In other words, the retry interval after a failure is
always set to the seconds configured in the
Intvl
parameter. If this feature is enabled, the
Random Delay
setting is added on top of the exponential
back-off adjusted delay value. The default value is 0, which
disables the exponential back-off feature.
Register Retry is configured in the SIP tab. See
Field Reference," on page121.
Register Retry Intvl parameter when
Register Retry Long Intvl
Register Retry
Register Retry
Reg Retry
1
parameter
"ATA Voice
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