Yealink SIP-T2 Series, Руководство по комплектации

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Obtaining the Provisioning Server Address
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After the IP phone obtains the provisioning server address from the PNP server, it will
connect to the provisioning server and perform the auto provisioning process during
startup.
Yealink IP phones support obtaining the provisioning server address by detecting DHCP
options during startup.
The phone will automatically detect the option 66 and option 43 for obtaining the
provisioning server address. DHCP option 66 is used to identify the TFTP server. DHCP
option 43 is a vendor-specific option, which is used to transfer the vendor-specific
information.
You can configure the phone to obtain the provisioning server address via a custom
DHCP option. To obtain the provisioning server address via a custom DHCP option,
make sure the DHCP option is properly configured on the phone. The custom DHCP
option must be in accordance with the one defined in the DHCP server.
For more information on how to configure a DHCP server, refer to Configuring a DHCP
Server on page 54 .
To configure the DHCP option via web user interface:
1. Click on Settings->Auto Provision.
2. Mark the On radio box in the DHCP Active field.
3. Enter the desired value in the Custom Option(128~254) field.