Cisco SPA 301 - Response Status Code Handling

Cisco SPA IP Phone Field Reference
SIP Tab
Cisco Small Business SPA 300 Series, SPA 500 Series, and WIP310 IP Phone Administration Guide 224
B
NOTE Cisco IP phones can use a RETRY-AFTER value when received from a SIP proxy
server that is too busy to process a request (503 Service Unavailable message). If
the response message includes a RETRY-AFTER header, the phone waits for the
specified length of time before retrying to REGISTER again. If a RETRY-AFTER
header is not present, the phone waits for the value specified in the
Reg Retry
Interval
or the Reg Retry Long Interval parameter.
Response Status Code Handling
Sub Retry Intvl This value (in seconds) determines the retry interval
when the last Subscribe request fails. Defaults to 10.
Parameter Description
Parameter Description
SIT1 RSC 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.
Reorder or Busy Tone is played by default for all
unsuccessful response status code for SIT 1 RSC
through SIT 4 RSC.
Defaults to blank.
SIT2 RSC SIP response status code to INVITE on which to play
the SIT2 Tone.
Defaults to blank.
SIT3 RSC SIP response status code to INVITE on which to play
the SIT3 Tone.
Defaults to blank.
SIT4 RSC SIP response status code to INVITE on which to play
the SIT4 Tone.
Defaults to blank.
Try Backup RSC SIP response code that retries a backup server for the
current request.
Defaults to blank.
Retry Reg RSC Interval to wait before the IP phone retries registration
after failing during the last registration.
Defaults to blank.