Yealink SIP-T48U Administrator's Guide

Network Configurations
61
VPN Files Description
client.crt Client certificate
client.key Private key of the client
VPN Configuration
The following table lists the parameters you can use to configure the VPN.
Parameter
static.network.vpn_enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the VPN feature.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Network > Advanced > VPN > Active
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > VPN > VPN Active
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > VPN > VPN Active
Parameter
static.openvpn.url <y0000000000xx>.cfg
Description
It configures the access URL of the *.tar file for OpenVPN.
Note: It works only if "static.network.vpn.mode" is set to 1 (OpenVPN).
Permitted
Values
URL within 511 characters
Default
Blank
Web UI
Network > Advanced > VPN > OpenVPN > Upload VPN Config
Parameter
static.network.openvpn_file.url
[1]
<y0000000000xx>.cfg
Description
It configures the URL for uploading the OpenVPN configuration file (vpn.cnf).
Note: It works only if "static.network.vpn.mode" is set to 1 (OpenVPN).
Permitted
Values
String within 512 characters
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S, T27G and CP920
Web UI
Network > Advanced > VPN > OpenVPN > Import VPN Configuration File
Parameter
static.network.vpn.mode
[1]
<y0000000000xx>.cfg
Description
It configures the VPN type.
Permitted
Values
0-L2TP
1-OpenVPN
Default
1
Supported
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U, T48S, T46S, T42S, T41S, T27G and CP920

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