Installation guide

Advanced Operational Parameters
41-001561-00 REV00 – 10.2014 A-231
DNS Maximum Cache TTL Settings
Parameter –
sip dns srvX target
Note:
The “X” indicate a server number with val-
ues from 1 to 4.
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The host name of the target.
Format Host name or fully qualified domain name
Default Value Not Applicable
Range Not Applicable
Example sip dns srv1 target: bigbox.example.com
Parameter–
sip dns cache negative max ttl
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Specifies the DNS maximum cache TTL for negative responses.
Format Integer
Default Value -1 (5 minutes)
Range 0 - 2147483647 (seconds)
(0 = Disabled)
Example sip dns cache negative max ttl: 3600
Parameter–
sip dns cache positive max ttl
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description Specifies the DNS maximum cache TTL for positive responses.
Format Integer
Default Value -1 (5 minutes)
Range 0 - 2147483647 (seconds)
(0 = Disabled)
Example sip dns cache positive max ttl: 3600