Yealink SIP-T48G Administrator's Manual page 43

Parameters
Configures the value (vendor class ID) of DHCP option 60.
Web User Interface:
Settings->Auto Provision->DHCP Option Value
Phone User Interface:
None
To configure DHCP option 60 on the IP phone via web user interface:
1. Click on Settings->Auto Provision.
2. Enter the desired host name in the DHCP Option Value filed.
3. Click Confirm to accept the change.
Yealink IP phones support using the NTP server address offered by DHCP .
DHCP option 42 is used to specify a list of NTP servers available to the client by IP
address. NTP servers should be listed in order of preference. DHCP option 2 is used to
specify the offset of the client's subnet in seconds from Coordinated Universal Time
(UTC).
To update time with the offset time offered by the DHCP server, make sure the DHCP
Time feature is enabled at the path Settings->Time & Date->DHCP Time. For more
information on how to configure DHCP time feature, refer to
77
.
Getting Started
Permitted
Default
Values
NTP Time Server on page
31