Response Status Code Handling - Linksys 900 Series Administrator's Manual

SIP Tab
Reg Retry Long Intvl
Sub Min Expires
Sub Max Expires
Sub Retry Intvl
Reg Retry Random Delay
Reg Retry Long Random Delay
Reg Retry Intvl Cap

Response Status Code Handling

Field
SIT1 RSC
SIT2 RSC
SIT3 RSC
SIT4 RSC
Try Backup RSC
Retry Reg RSC
Linksys 900 Series IP Phone Administrator Guide
5-12
When registration fails with a SIP response code that does not match<Retry Reg RSC>,
the 900 Series phone waits for the specified length of time before retrying. If this interval
is 0, the 900 Series phone stops trying. This value should be much larger than the Reg
Retry Intvl value, which should not be 0.
The default is 1200.
This value sets the lower limit of the REGISTER expires value returned from the Proxy
server.
This value sets the upper limit of the REGISTER min-expires value returned from the
Proxy server in a Min-Expires header
This value (in seconds) determines the retry interval when the last Subscribe request fails.
Random delay range (in seconds) to add to <Register Retry Intvl> when retrying
REGISTER after a failure. This feature was added in Release 5.1.
The default is 0, which disables this feature.
Random delay range (in seconds) to add to <Register Retry Long Intvl> when retrying
REGSITER after a failure. This feature was added in Release 5.1.
The default is 0, which disables this feature.
The maximum value to cap the exponential back-off retry delay (which starts at <Register
Retry Intvl> and doubles on every REGISTER retry after a failure). In other words, the
retry interval is always at <Register Retry Intvl> seconds after a failure. If this feature is
enabled, <Reg Retry Random Delay> is added on top of the exponential back-off adjusted
delay value. This feature was added in Release 5.1.
The default value is 0, which disables the exponential back-off feature.
Description
SIP response status code for the appropriate Special Information Tone (SIT). For example,
if you set the SIT1 RSC to 404, when the user makes a call and a failure code of 404 is
returned, the SIT1 tone is played.
unsuccessful response status code for SIT 1 RSC through SIT 4 RSC.
SIP response status code to INVITE on which to play the SIT2 Tone.
SIP response status code to INVITE on which to play the SIT3 Tone.
SIP response status code to INVITE on which to play the SIT4 Tone.
SIP response code that retries a backup server for the current request.
Interval to wait before the 900 Series phone retries registration after failing during the last
registration.
The default is 30.
Chapter 5
Reorder or Busy Tone is played by default for all
900 Series phone Field Reference
Document Version 3.1