Aastra Telecom 800 User Manual

Voice over IP (VoIP)

VoIP System Telephones

73

Standard operating procedure is to contact the Aastra 800’s DHCP server so that 
the start procedure can be concluded without problems. To register a new VoIP 
system telephone, proceed as follows:

1. Temporarily remove the VoIP system telephone’s ethernet connection. Switch 

on the VoIP system telephone’s power supply. Note the MAC address shown in 
the display, for instance “MAC: 00:30:42:00:00:00”. Switch off the power supply.

2. In the Configurator, open the Telephony: Devices: VoIP Phones page. Click 

on the New button.

3. Select the VoIP system telephone’s Type and enter the previously noted MAC 

address. Assign a Name and Phone No. Confirm with Apply.

4. Connect the ethernet connection with the VoIP system telephone’s RJ45 con-

nector. Switch on the power supply. Verify the correct start procedure on the 
display.

If the LAN already uses a DHCP server to configure workstation computers, there 
are various options for correctly responding to VoIP system telephones’ DHCP, 
BOOTP and TFTP requests. A comparatively simple approach is described here.

1. Configure the LAN’s DHCP server to ignore DHCP requests from the VoIP 

system telephones. With a Linux DHCP server program, you must, for example, 
include the following lines in the system file “/etc/dhcpd.conf”:

group {

deny booting;
host 192.168.11.12 {

hardware ethernet 

00:30:42:00:11:22;

}

}

Every DHCP service program has similar options. You may need to reserve a 
free IP address for each VoIP system telephone. You will find more details in 
your DHCP service program’s online help or handbook. The MAC address of all 
VoIP system telephones always begins with 00:30:42.