Network Configurations
28
Parameters
DHCP
Option
Description
Time Server
4
Specify a list of time servers available to the client.
Domain Name Server
6
Specify a list of domain name servers available to the client.
Host Name
12
Specify the name of the client.
Domain Server
15
Specify the domain name that the client should use when resolving host-
names via DNS.
Network Time Protocol
Servers
42
Specify a list of NTP servers available to the client by IP address.
Vendor-Specific Inform-
ation
43
Identify the vendor-specific information.
Vendor Class Identifier
60
Identify the vendor type.
TFTP Server Name
66
Identify a TFTP server when the 'sname' field in the DHCP header has been
used for DHCP options.
DHCP Option 66, Option 43 and Custom Option
During the startup, the phone automatically detects the DHCP option for obtaining the provisioning server address.
The priority is as follows: custom option > option 66 (identify the TFTP server) > option 43.
The phone can obtain the Auto Configuration Server (ACS) address by detecting option 43 during startup.
Note
: If you fail to configure the DHCP options for discovering the provisioning server on the DHCP server, enable the phone
to automatically discover the provisioning server address. One possibility 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
.
Related Topic
DHCP Option 42 and Option 2
Yealink 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).
Related Topic
DHCP Option 12
You can specify a hostname for the phone when using DHCP. The DHCP client uses option 12 to send a pre-
defined hostname to the DHCP registration server.
See
for character set restrictions.
Topic
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.
Summary of Contents for VP59 Teams
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