Cisco Systems SPA9000 manual Response Status Code Handling section, SIT1 RSC

SPA9000 Field Reference

Voice tab

B

Reg Retry Long Random	Random delay range (in seconds) to add to <Register Retry
Delay	Long Intvl> when retrying REGSITER after a failure.
	Default: 0 (disabled)
Reg Retry Intvl Cap	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.
	Default: 0 (disables the exponential back-off feature)

Voice tab > SIP page

Response Status Code Handling section

The RSC handling defines the behavior of the user audio tones played under specific conditions signaled by the network, such as congestion, queuing, etc. The default settings (blank) are adequate is most circumstances.

NOTE These settings need to be compatible with the ITSP network settings. The ITSP you use will inform you about any specific setting you need to modify on these areas. These parameters have impact on the signaling and audio reliability.

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.
SIT2 RSC	SIP response status code to INVITE on which to play the SIT2
	Tone.
SIT3 RSC	SIP response status code to INVITE on which to play the SIT3
	Tone.
SIT4 RSC	SIP response status code to INVITE on which to play the SIT4
	Tone.
Try Backup RSC	SIP response code that retries a backup server for the
	current request.
Retry Reg RSC	Interval to wait before the SPA9000 retries registration after
	failing during the last registration.

SPA9000 Voice System Administration Guide 206