Nortel 2001 Installation And Operation Manual page 73

supports Auto Negotiate and it selects the best speed and duplex mode
available. There is no intervention required under normal operation.
If the telephone is connected to a network configured for Full Duplex mode
only, it is not able to automatically negotiate the proper configuration.
Therefore, in this instance, to allow the telephone to work at the optimum
speed and duplex mode, Auto Negotiate must be disabled. Use the following
procedure to disable Auto Negotiate and enable Full Duplex mode.
Procedure 12
Disabling Auto Negotiate and enabling Full Duplex mode
1 Reset the phone by disconnecting and re-connecting power.
2 When the Nortel Networks logo appears, press each of the soft keys in
sequence. See Procedure 10 on
3 If no other configuration changes are required, press the 0 Soft-key, OK,
repeatedly until the Duplex network option appears.
4 Select 1 to enable Full Duplex mode.
5 When the Speed option appears, select one of the following:
• 0 for 10 Mbps
• 1 for 100 Mbps (default)
6 Select OK to confirm the change.
7 Restart the telephone. The firmware reads the new setting, and the
telephone operates in Full Duplex mode.
When the telephone is re-started, the firmware reads the setting for Full
Duplex mode and sets both port 0, network interface port, and port 1, PC
interface port, accordingly.
Use the following procedure to confirm activation of Full Duplex mode.
Procedure 13
Checking Ethernet Statistics
1 Double-click the Services key. The Network Diagnostics menu appears.
2 Select Ethernet Statistics.
• If Full Duplex mode is active, the following is displayed:
Nortel Networks IP Phone 2002
page 60.
IP Phones Description, Installation, and Operation
Page 73 of 302