User Guide

Introduction
1
Introduction
Yealink IP phones are full-featured telephones that can be plugged directly into an IP network
and can be used easily without manual configuration.
This guide provides instructions on how to provision Yealink IP phones with the minimum
settings required. Yealink IP phones support FTP, TFTP, HTTP, and HTTPS protocols for auto
provisioning and are configured by default to use the TFTP protocol.
The purpose of this guide is to serve as a basic guidance for provisioning Yealink IP phones,
including:
Yealink SIP-T58V/A
Yealink SIP-T56A
Yealink SIP-T48G/S
Yealink SIP-T46G/S
Yealink SIP-T42G/S
Yealink SIP-T41P/S
Yealink SIP-T40P/G
Yealink SIP-T29G
Yealink SIP-T27P/G
Yealink SIP-T23P/G
Yealink SIP-T21(P) E2
Yealink SIP-T19(P) E2
Yealink W52P/W56P
The auto provisioning process outlined in this guide applies to Yealink
SIP-T48G/T48S/T46G/T46S/T42G/T42S/T41P/T41S/T40P/T40G/T29G/T27P/T27G/T23P/T23G/
T21(P) E2/T19(P) E2, W52P and W56P IP phones running firmware version 81 or later and
SIP-T58V/T58A/T56A IP phones running firmware version 80 or later. We recommend that IP
phones running the latest firmware CANNOT be downgraded to an earlier firmware version.
The new firmware is compatible with old configuration parameters, but not vice versa.