Phone Network17For T52S IP phones: SIP-T52S.For T48G IP phones: SIP-T48G.For T48S IP phones: SIP-T48S.For T46G IP phones: SIP-T46G.For T46S IP phones: SIP-T46S.For T42G IP phones: SIP-T42G.For T42S IP phones: SIP-T42S.For T41P IP phones: SIP-T41P.For T41S IP phones: SIP-T41S.For T40P IP phones: SIP-T40P.For T40G IP phones: SIP-T40G.For T29G IP phones: SIP-T29G.For T27P IP phones: SIP-T27P.For T27G IP phones: SIP-T27G.For T23P IP phones: SIP-T23P.For T23G IP phones: SIP-T23G.For T21(P) E2 IP phones: SIP-T21P_E2.For T19(P) E2 IP phones: SIP-T19P_E2.Web UI Features->General Information->DHCP Hostname[1]If you change this parameter, the IP phone will reboot to make the change take effect.DHCP Option 120The DHCP option 120 is used by the SIP client to locate a local outbound proxy server.TopicDHCP Option 120 ConfigurationDHCP Option 120 ConfigurationThe following table lists the parameter you can use to configure DHCP option 120.Parameter sip.dhcp.option120.mode <y0000000000xx>.cfgDescription It configures whether to use DHCP option 120 for obtaining the outbound proxyserver IP address.PermittedValues0-Do not check with the DHCP server for the outbound proxy server IP address.1-The value obtained from DHCP option 120 is used as outbound proxy server IPaddress (can resolve up to two domain names or IPv4 addresses). If
