SIP IP Phone Models 9143i, 9480i, 9480i CT and 5i Series Phones Release Note 2.3
New Features in Release 2.3
Configuring DHCP Option 77 User Class via the IP Phone UI
Use the following procedure to configure the phone to use DHCP Option 77.
Aastra IP Phone UI
Step Action
1Press Options, and then select Administrator Menu.
On the 51i:
Press Services, and then select
2Select Network Settings.
3Select DHCP Settings.
4Select DHCP User Class.
5In the “DHCP User Class” field, enter a DHCP User Class to apply to your phones, then press DONE. Valid values are up to 64
6Restart the phone for the change to take affect.
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