Aastra 9143i Series Administrator's Manual page 196

IP Phone Administrator Guide
Network Settings
Aastra IP Phone UI
Step Action
1 Press Options, and then select Administrator Menu.
On the 6751i:
Press Services, and then select Options->Administrator Menu.
2 Select Network Settings.
3 Select Hostname.
4 By default, the "Hostname" field is automatically populated with [<Model><MAC address>] of your
phone (for example, 53i00085D164435).
If you want to change the hostname, enter a hostname for your phone in the "Hostname" field, then
press DONE.
Valid values are up to 64 alpha-numeric characters. You can use a fully qualified domain name if
required.
5 Restart the phone for the change to take affect.
4-12 41-001160-03 Rev 00, Release 2.5