Yealink SIP-T48U Administrator's Guide

Security Features
110
l DST Root CA X3
l Verizon Public SureServer CA G14-SHA2
l AddTrust External CA Root
l Go Daddy Class 2 Certification Authority
l Class 2 Primary CA
l Cybertrust Public SureServer SV CA
l DigiCert Assured ID Root G2
l DigiCert Assured ID Root G3
l DigiCert Assured ID Root CA
l DigiCert Global Root G2
l DigiCert Global Root G3
l DigiCert Global Root CA
l DigiCert Trusted Root G4
l Entrust Root Certification Authority
l Entrust Root Certification Authority - G2
l Entrust.net Certification Authority (2048)
l GeoTrust Primary Certification Authority - G3
l GlobalSign Root CA
l GlobalSign Root CA - R2
l Starfield Root Certificate Authority - G2
l TC TrustCenter Class 2 CA II
l TC TrustCenter Class 3 CA II
l TC TrustCenter Class 4 CA II
l TC TrustCenter Universal CA I
l TC TrustCenter Universal CA III
l Thawte Universal CA Root
l VeriSign Class 3 Secure Server CA - G2
l VeriSign Class 3 Secure Server CA – G3
l Thawte SSL CA
l StartCom Certification Authority
l StartCom Certification Authority G2
l Starfield Services Root Certificate Authority - G2
l RapidSSL CA
l Go Daddy Root Certificate Authority - G2
l Cybertrust Global Root
l SectigoSSLCA
l Sectigo RSA Domain Validation Secure Server CA
l Sectigo RSA Certification Authority
l AmazonRootCA4
l AmazonRootCA3
l AmazonRootCA2
l AmazonRootCA1
l Yealink Root CA
l Yealink Equipment Issuing CA
l SIP Core
l QuoVadis Root CA 2
l QuoVadis Root Certification Authority
l USERTrust RSA Certification Authority

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