Name: Yealink SIP-T48G
Brand: Yealink
Rating: 4 (1 reviews)

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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones

http://www.ietf.org/rfc/rfc2132.txt?number=2132.

If you do not have the ability to configure the DHCP options for discovering the

provisioning server on the DHCP server, an alternate method of automatically

discovering the provisioning server address is required. Connecting to the secondary

DHCP server that responds to DHCP INFORM queries with a requested provisioning

server address is one possibility. For more information, refer to

http://www.ietf.org/rfc/rfc3925.txt?number=3925.

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.

To use DHCP option 66 or DHCP option 43, make sure the DHCP Active feature is

enabled.

Procedure

DHCP active can be configured using the configuration files or locally.

Configuration File

<y0000000000xx>.cfg

Configure DHCP active.

Parameters:

auto_provision.dhcp_option.enable

Local

Web User Interface

Configure DHCP active.

Navigate to:

http://<phoneIPAddress>/servlet?p

=settings-autop&q=load

Details of Configuration Parameters:

Parameters

Permitted Values

Default

auto_provision.dhcp_option.enable

0 or 1

Description:

Triggers the DHCP Option feature to on or off.

0-Off

1-On

If it is set to 1 (On), the IP phone will obtain the provisioning server address by

Yealink SIP-T48G Specifications

General