Yealink SIP-T48G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
68
Parameters
Permitted Values
Default
Port->IPv4->DHCP IPv4 Client->Static DNS (Enabled) ->IPv4 Sec.DNS
To configure static DNS address when DHCP is used via web user interface:
1. Click on Network->Basic.
2. In the IPv4 Config block, mark the DHCP radio box.
3. In the Static DNS block, mark the On radio box.
4. Enter the desired values in the Primary DNS and Secondary DNS fields.
5. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after a reboot.
6. Click OK to reboot the phone.
To configure static DNS when DHCP is used via phone user interface:
1. Press Menu->Settings->Advanced Settings (default password: admin)
->Network->WAN Port->IPv4->DHCP IPv4 Client.
2. Press or , or the Switch soft key to select Enabled from the Static DNS field.
3. Enter the desired values in the IPv4 Pri.DNS and IPv4 Sec.DNS fields respectively.
4. Press the Save soft key to accept the change.
The IP phone reboots automatically to make settings effective after a period of time.
DHCP provides a framework for passing information to TCP/IP network devices. Network
and other control information are carried in tagged data items that are stored in the
options field of the DHCP message. The data items themselves are also called options.
DHCP can be initiated by simply connecting the IP phone with the network. IP phones

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm