Yealink T19P, User Manual

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Obtaining the Address of Provisioning Server
29
Yealink IP phones support obtaining the provisioning server address in the following
ways:

Zero Touch

Plug and Play (PnP) Server

DHCP Options

Phone Flash
The priority of obtaining the provisioning server address is as follows: Zero Touch-->PnP
Server-->DHCP Options (Custom option-->option 66-->option 43) -->Phone Flash.
The following sections detail the process of each way (take the SIP-T28P IP phone as an
example).
Zero Touch allows you to configure the network parameters and provisioning server
address via phone user interface during startup. This feature is helpful when there is a
system failure on the phone. To use Zero Touch, make sure this feature is enabled.
To configure the Zero Touch via web user interface:
1. Click on Settings->Auto Provision.
2. Select Enabled from the pull-down list of Zero Active.