Dhcp Option 42 And Option 2; Dhcp Option 12; Dhcp Option 60 - Yealink Teams Series Administrator's Manual

is that connecting to the secondary DHCP server that responds to DHCP INFORM queries with a requested
provisioning server address. For more information, refer to
responds, this is functionally equivalent to the scenario where the primary DHCP server responds with a valid
provisioning server address. If no DHCP server responds, the INFORM query process will retry and until the
time is out.

DHCP Option 42 and Option 2

Yealink Teams IP Phones can use 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).
Related information
NTP Settings

DHCP Option 12

You can specify a hostname for the phone when using DHCP. The DHCP client uses option 12 to send a predefined
hostname to the DHCP registration server. The name may or may not be qualified with the local domain name (based
RFC 2132). See RFC 1035
on
DHCP Option 12 Hostname Configuration
•
DHCP Option 12 Hostname Configuration
The following table lists the parameter you can use to configure DHCP option 12 hostname.
Parameter
Description
Permitted Values
Default
[1]If you change this parameter, the phone will reboot to make the change take effect.

DHCP Option 60

DHCP option 60 is used to identify the vendor and functionality of a DHCP client. You can set the format for option
60. The default vendor class ID is "yealink".
• DHCP Option 60 Configuration
DHCP Option 60 Configuration
The following table lists the parameter you can use to configure DHCP option 60.
Parameter
Description
for character restrictions.
static.network.dhcp_host_name
It configures the DHCP Option 12 Hostname on the phone.
String within 99 characters
For T58A Teams IP Phones: SIP-T58
For T56A Teams IP Phones: SIP-T56A
For CP960 Teams IP Phones: SIP-CP960
For T55A Teams IP Phones: SIP-T55A
For VP59 Teams IP Phones: VP59
static.auto_provision.dhcp_option.option60_value
It configures the value (vendor name of the device) of DHCP option 60.
RFC 3925. If a single alternate DHCP server
[1]
<y0000000000xx>.cfg
[1]
<y0000000000xx>.cfg
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