Yealink SIP-T2XP, Руководство пользователя

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Obtaining the Address of Provisioning Server
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Yealink IP phones support to obtain the provisioning server address during bootup
process in the following ways:

Zero Touch

Plug and Play (PNP) Server

DHCP Options

Phone Flash
When the phone boots up, it will go by the above process to try to obtain the
provisioning server address. The priority of obtaining the provisioning server address is
as following: Zero Touch -->PNP server -->DHCP options (Custom option --> option 66
-->option 43) -->Phone Flash.
The following sections detail each process.
Zero Touch allows you to configure the network and provisioning server address via
phone user interface during bootup. This feature is helpful when there is a system failure
on the phone. To use Zero Touch, you need to make sure that this feature is enabled.
To configure the Zero Touch via web user interface:
1. Click on Upgrade ->Advanced.
2. Select Enabled from the pull-down list of Zero Touch.
3. Set the waiting time (in seconds) in the Wait Time (seconds) filed.