Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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The boot log file reports the logs with all severity levels.
The following figure shows a portion of a sys log file (for example, 00156574b150.log):
The <MAC>.log file reports the logs with a configured severity level and the higher. For example, if you have con-
figured the severity level of the log to be reported to the <MAC>.log file to 4, then the log with a severity level of 0 to
4 will all be reported.
Syslog Logging
You can also configure the IP phone to send syslog messages to a syslog server in real time.
You can specify syslog details such as IP address or hostname, server type, facility, and the severity level of events
you want to log. You can also choose to prepend the phone's MAC address to log messages.
Topics
Syslog Logging Configuration
Viewing the Syslog Messages on Your Syslog Server
Syslog Logging Configuration
The following table lists the parameters you can use to configure syslog logging.
Parameter
static.syslog.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to upload log messages to the syslog server in real time.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Configuration > Syslog > Enable Syslog
Parameter
static.syslog.server <y0000000000xx>.cfg

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