Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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For example, for IPv4: http://192.168.0.10 or 192.168.0.10; for IPv6: http://[2005:1:1:1:215:65ff:fe64:6e0a] or
[2005:1:1:1:215:65ff:fe64:6e0a].
3.
Enter the user name and password.
4. Click Login.
Related Topics
Web Server Type Configuration
User and Administrator Identification
Quick Login Configuration
You can access the web user interface quickly using the request URI. It will locate you in the Status web page after
accessing the web user interface. It is helpful to quickly log into the web user interface without entering the user-
name and password on the login page.
The request URI for T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U: phones:
https://phoneIPAddress/api/auth/login?@username:password
Example: https://192.168.0.10/api/auth/login?@admin:admin
The request URI for other phones:
https://username:password@phoneIPAddress
Example: https://admin:admin@192.168.0.10
Yealink phones support domain name customization. You can use a custom domain name to access the web user
interface.
Note: Accessing the web user interface by request URI may be restricted by the web explorer (for example, Internet
Explorer).
For security purposes, we recommend that you use this feature in a secure network environment.
The following table lists the parameters you can use to configure quick login.
Parameter
wui.quick_login <y0000000000xx>.cfg
Description
It enables or disables the quick login feature.
Note: It works only if “static.wui.https_enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, you can quickly log into the web user interface using a request URI (for example,
https://IP/api/auth/login?@admin:admin).
Default
0
Parameter
wui.secure_domain_list <y0000000000xx>.cfg
Description
It configures the valid domain name to access the web user interface of the phone.
Multiple domain names are separated by semicolons.
Example:
wui.secure_domain_list = test.abc.com
You are only allowed to use test.abc.com or IP address to access the web user interface of the phone.
Note: To use a domain name to access the web user interface of the phone, make sure your DNS
server can resolve the domain name to the IP address of the phone.
Permitted
Values
String
If it is left blank, you are only allowed to use the IP address to access the web user interface of the

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm