New Features in Release 2.3RN-001029-02, Release 2.3, Rev 00 15SIP IP Phone Models 9143i, 9480i, 9480i CT and 5i Series Phones Release Note 2.3DHCP Option 12 Hostname for the Configuration ServerRelease 2.3 includes a new DHCP Option 12 that the phone automatically sends to theconfiguration server. This option specifies the hostname (name of the client). The name may ormay not be qualified with the local domain name (based on RFC 2132). See RFC 1035 forcharacter set restrictions.An Administrator can change the “Hostname” for the DHCP Option 12 via the configuration files,the IP Phone UI, and the Aastra Web UI.Changing DHCP Option 12 Hostname via the Configuration FilesUse the following parameter to change the “hostname” for DHCP Option 12.Notes:1. The hostname of [] automaticallypopulates the field on initial startup of the phone. For example, for a 53i,the “Hostname” field is automatically populated as “53i00085D164435”,where the model number is “53i” and the MAC address is“00085D164435”.2. If the configuration server sends the hostname back to the phonein a DHCP Reply Packet, the hostname is ignored.Parameter–hostnameHostname(in Web UI)Configuration Files aastra.cfg, .cfgIP Phone UI Options->Administrator Menu->Network Settings->HostnameAastra Web UI Advanced Settings->Network->Basic Network SettingsDescription Specifies the hostname DHCP Option 12 that the phone sends with theDHCP Request packet.Note: If you change this parameter, you must restart your phone for thechange to take affect.Format StringDefault Value []Range Up to 64 alpha-numeric charactersNote: The value for this parameter can also be a fully qualified domainname.Example hostname: aastra4