Altigen AltiWare ACM 5.1 Administration Manual page 249

Parameter Description
TFTP Lets you assign the TFTP server to which the IP phone can
connect for updating firmware when necessary. Enter the IP
address of the TFTP server in the Server field.
To reset the phone and download the latest firmware image,
check the Reset IP Phone and Boot Download check boxes.
If you only check the Boot Download box, the firmware will
be downloaded when the IP phone reboots (power cycles) next
time.
Note:
Make sure the TFTP server is running and the new
firmware image is loaded to the correct directory before
you reset and download firmware.
NAT This setting is for a remote IP phone with a private address and
Setting behind NAT. When connecting to the AltiGen system, the
system will use this information to execute the NAT traversal
for the IP phone. The NAT status and address are read-only
fields.
• NAT Status
router. Read only.
• NAT Address— This is the NAT router's public IP address,
as set in the Extension Configuration window. Read only.
Registry Keep-Alive Duration
registration message is sent to the server when the IP phone
is behind a NAT router. You need to enter a Diagnostic
password when logging in to AltiWare Admin (before you
enter your Admin password) to enable this configuration.
Default setting is 60 seconds.
Chapter 17: AltiGen IP Phone Configuration
—
Indicates if the IP phone is behind a NAT
—
Indicates how often a SIP
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