Advanced Operational Parameters
41-001160-00, Release 2.1, Rev 04 A-175
Configuration Parameters
Appendix A
Blacklist DurationWhitelist Proxy
Parameter –
sip blacklist duration
Blacklist Duration
(Aastra Web UI)
Aastra Web UI Advanced Settings->Global SIP Settings->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
Description Specifies the length of time, in seconds, that a failed server remains on
the server blacklist. The IP phone avoids sending a SIP message to a
failed server (if another server is available) for this amount of time.
Note: The value of “0” disables the blacklist feature.
Format Integer
Default Value 300 (5 minutes)
Range 0 to 9999999
Example sip blacklist duration: 600
Parameter –
sip whitelist
Whitelist Proxy
(Aastra Web UI)
Aastra Web UI Advanced Settings->Global SIP->
Advanced SIP Settings
Configuration Files aastra.cfg, <mac>.cfg
Description This parameter enables/disables the whitelist proxy feature, as follows:
• Set to 0 to disable the feature.
• Set to 1 to enable the feature. When this feature is enabled, an IP
phone accepts call requests from a trusted proxy server only. The IP
phone rejects any call requests from an untrusted proxy server.
Format Boolean
Default Value 0 (disabled)
Range 0 (disabled)
1 (enabled)
Example sip whitelist: 1