User guide

Dynamic Addressing Process
Issue 4 February 2010 25
Note:
Note: The Ethernet speed indicated is the LAN interface speed for both the telephone
and any attached PC, assuming the administrator has not disabled the latter
interface by a PHY2STAT setting.
2. The IP telephone sends a request to the DHCP server and invokes the DHCP process.
One of the following messages display:
where s is the number of seconds that have elapsed since DHCP was invoked. The
message on the left appears if 802.1Q tagging is off and access to local programming
procedures is not disabled or restricted. (See Chapter 3: Local Administrative Options
for
specifics.) The middle message appears if 802.1Q tagging is on and access to local
programming procedures is disabled or restricted. If the left and middle messages alternate
every two seconds, 802.1Q tagging is on. When both messages alternate, access to local
programming procedures is not disabled or restricted. Finally, the message on the right
appears if 802.1Q tagging is off and access to local programming procedures is disabled or
restricted.
3. The DHCP server provides IP addresses for the following hardware:
● The IP telephone
● The HTTP/HTTPS server
● The TN799C or D Control-LAN (CLAN) circuit pack on the media server
4. Using the list of gateway IP addresses provided by the DHCP server, the telephone
performs a router check. The telephone cycles through the gateway IP addresses with
ARPs or pings until it receives a response. When the router is located, the HTTP/HTTPS
process starts.
5. While the IP telephone connects to the HTTP/HTTPS server, the telephone displays the
following message:
where n is the number of the IP address obtained from the HTTP/HTTPS server and ipadd
is the IP address.
6. When connected, the telephone looks for an upgrade script file.
DHCP: s secs
* to program
DHCP: s secs
VLAN ID = n
DHCP: s secs
HTTP:n ipadd