Manually Setting the DHCP Client Hardware Address

Use this procedure to manually set or change the Client Hardware Address, if you use static addressing rather than DHCP.

1. While the telephone is on-hook and idle, press the following sequence of keys on the telephone’s faceplate:

Mute 2 4 2 3 3 7 # (Mute C H A D D R #)

NOTE: Press the Mute button momentarily. Do not press this button while pressing other keys/buttons. The 4630/4630SW IP Telephones and the 4690 IP Conference Telephone do not have a dedicated Hold button. For all other 4600 Series IP Telephones, pressing the Hold button instead of the Mute button also works.

All IP telephones except the 4601 display the following text left-justified at the top of the display:

where dddddd is the value of NVCHADDR, the system variable for the DHCP Client Hardware Address.

Because it does not have a display, the 4601 IP Telephone’s Call Appearance Line a’s indicator winks out the current NVCHADDR value 600 milliseconds on, 200 milliseconds off. If the current value is zero, Call Appearance Line a’s indicator flutters five times 50 milliseconds on, 50 milliseconds off instead of winking.

After the 4601 “displays” the current value, the Message Waiting indicator at the top of the telephone and the Message button LED on the faceplate flash 500 milliseconds on, 500 milliseconds off to indicate an entry is expected.

2. To change the Client Hardware Address value, enter a valid client hardware address. This value is usually the MAC address, which DHCP then converts to an integer preceded by zeroes.

The 4601 provides feedback for each digit as you enter it using both Call Appearance Line indicators. The indicators alternate winking the number of times represented by the digit you press 200 milliseconds on, 50 milliseconds off. For example, if the first digit of the address is “2,” pressing the number 2 on the dial pad causes Call Appearance Line a’s indicator to wink two times. If the second digit you press is “4,” after an 1800 millisecond pause, Call Appearance Line b’s indicator winks four times. Pressing “0” (zero) on the dial pad causes the appropriate indicator to flutter three five 50 milliseconds on, 50 milliseconds off.

Then the 4601 flashes both Message Waiting indicators 500 milliseconds on, 500 milliseconds off to indicate an entry is expected.

For all IP telephones except the 4601, if a value different from the current value of NVCHADDR is entered, the following text displays left-justified at the top of the display:

3. Press the * button to terminate the procedure, or the # button to save the new value. If you press the # button, all IP telephones except the 4601 display the following text:

All phones save the new value.