Specifications
Table Of Contents
- Linksys SPA9000 Administrator Guide
 - Contents
 - Preface
 - 1
 - 2
 - 3
- Configuring Voice Service and Voicemail
- Using the Wizard to Configure ITSP Voice Services and Voicemail
 - Completing the Voicemail Configuration
 - Configuring the SPA400 for PSTN Connectivity or Voicemail
 - Configuring a SPA IP Phone for Voice Mail Service
 - SPA400 Voicemail Options
 - Managing Voicemail
 
 
 - Configuring Voice Service and Voicemail
 - 4
 - 5
 - 6
 - A
 - B
 - Index
 

6-10
Linksys SPA9000 Administrator Guide
Document Version 3.01
Chapter 6 SPA9000 Field Reference
SIP Tab
Response Status Code Handling
RTP Parameters 
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. This feature was added in Release 5.1.
The default value is 0, which disables the exponential back-off feature. 
Field 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. 
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. 
The default is 30. 
Field Description
RTP Port Min Minimum port number for RTP transmission and reception. <RTP Port Min> and 
<RTP Port Max> should define a range that contains at least 4 even number 
ports, such as 100 – 106. 
The default is 16384.
RTP Port Max Maximum port number for RTP transmission and reception.
The default is 16482.
RTP Packet Size Packet size in seconds, which can range from 0.01 to 0.16. Valid values must be a multiple 
of 0.01 seconds. 
The default is 0.030.










