User Manual

Yealink Skype for Business HD IP Phones Administrator Guide

Querying the DHCP (Dynamic Host Configuration Protocol) Server

The Skype for Business phone is capable of querying a DHCP server. DHCP is enabled on the

Skype for Business phone by default. The following network parameters can be obtained from

the DHCP server during initialization:

 IP Address

 Subnet Mask

 Gateway

 Primary DNS (Domain Name Server)

 Secondary DNS

You need to configure network parameters of the Skype for Business phone manually if any of

them is not supplied by the DHCP server. For more information on configuring network

parameters manually, refer to Configuring Network Parameters Manually on page 37.

Contacting the provisioning server

If the phone is configured to obtain configurations from the provisioning server, it will connect

to the provisioning server, download the configuration file(s) during startup. The phone will be

able to resolve and update configurations written in the configuration file(s). If the phone does

not obtain configurations from the provisioning server, the phone will use configurations stored

in the flash memory. For more information, refer to Setting Up Your Phones with a Provisioning

Server on page 92.

Updating firmware

If the access URL of firmware is defined in the configuration file, the phone will download

firmware from the provisioning server. If the MD5 value of the downloaded firmware file differs

from that of the image stored in the flash memory, the phone will perform a firmware update.

You can manually upgrade firmware if the phone does not download firmware from the

provisioning server. For more information, refer to Upgrading Firmware on page 100.

Downloading the resource files

In addition to configuration file(s), the Skype for Business phone may require resource files

before it can deliver service. These resource files are optional, but if some particular features are

being deployed, these files are required.

The followings show examples of resource files:

 Language packs

 Ring tones

For more information on resource files, refer to Resource Files on page 95.

Verifying Startup

After connected to the power and network, the Skype for Business phone begins the initializing