Aastra Telecom SIP 480I - Manual (Page 47)

Administrator Level Options
41-001129-00 Rev 09, Release 1.4.1 3-13
Administrator Options
Administrator Options • Primary DNS
Primary Domain Name Service. A service that translates domain names into
IP addresses. To assign static DNS addresses, disable DHCP.
• Secondary DNS
Secondary Domain Name Service. A service that translates domain names
into IP addresses. To assign static DNS addresses, disable DHCP.
Advanced Network Settings
• NAT IP
Network Address Translator settings are used to map your firewall to an
external NAT device. This is the IP address of the external network device
that enforces NAT. Default is 0.0.0.0.
• NAT Port
Hard-coded port number of the external network device that enforces NAT.
Default is 0.
• Nortel NAT Traversal Enabled
Enables or disables the phone to operate while connected to a network device
that enforces NAT. Valid values are 0 (No) or 1 (Yes). Default is 0 (No).
• Nortel NAT Timer (seconds)
The interval, in seconds, that the phone sends SIP ping requests to the Nortel
proxy. Default is 30.
• NTP Time Servers
Enables or disables the time server. This parameter affects time server1, time
server2, and time server3. Valid values are 0 (enable) and 1 (disable). Default
is 1 (disable).
• Time Server 1, 2, and 3
The primary, secondary, and tertiary time server's IP address or qualified
domain name. If the "NTP Time Server" parameter is enabled, and the
primary and secondary time servers are not configured or cannot be accessed,
the value for Time Server 3 is used to request the time.
Note: If a host name is configured on the IP phone, you must also set a
DNS.