Dhcp Option For Ipv4; Supported Dhcp Option For Ipv4; Dhcp Option 66, Option 43 And Custom Option - Yealink SIP-T2 Series Administrator's Manual

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If you change this parameter, the IP phone will reboot to make the change take effect.

DHCP Option for IPv4

The IP phone can obtain IPv4-related parameters in an IPv4 network via DHCP option.
Note
For more information on DHCP options, refer to
Topics

Supported DHCP Option for IPv4

DHCP Option 66, Option 43 and Custom Option

DHCP Option 42, Option 2 and Option 100
DHCP Option 12
DHCP Option 120
DHCP Option 60
Supported DHCP Option for IPv4
The following table lists common DHCP options for IPv4 supported by Yealink IP phones.
Parameters
Subnet Mask
Time Offset
Router
Time Server
Domain Name Server
Host Name
Domain Server
Network Time Protocol
Servers
Vendor-Specific Inform-
ation
Vendor Class Identifier
TFTP Server Name
Timezone/DST
SIP Server/Outbound
Proxy Server
DHCP Option 66, Option 43 and Custom Option
During the startup, the phone will automatically detect the custom option, option 66, or option 43 for obtaining the
provisioning server address. The priority of obtaining the provisioning server address is as follows: custom
RFC 2131
or
DHCP
Option
1 Specify the client's subnet mask.
Specify the offset of the client's subnet in seconds from Coordinated Universal
2
Time (UTC).
3 Specify a list of IP addresses for routers on the client's subnet.
4 Specify a list of time servers available to the client.
6 Specify a list of domain name servers available to the client.
12 Specify the name of the client.
Specify the domain name that client should use when resolving hostnames via
15
DNS.
42 Specify a list of NTP servers available to the client by IP address.
43 Identify the vendor-specific information.
60 Identify the vendor type.
Identify a TFTP server when the 'sname' field in the DHCP header has been
66
used for DHCP options.
100 Specify a POSIX timezone string.
120 Convey a SIP server's or outbound proxy server's location to the client.
RFC 2132.
Description
Phone Network
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