Yealink T48s User Manual

Provisioning
Your Yealink SIP-T48S IP Phone will be pre-loaded with all the information it needs to automatically provision
the Hosted Voice service once all the connections have been made.
1. Once connected to the network port that is providing network access the phone will do a series of
firmware updates (please allow the phone time to complete).
3. Your phone has provisioned correctly if this symbol is
showing against the phones line key
4. Your phone has not provisioned correctly if this symbol
is showing against the phones line key
2. Once complete the phone will now show the line number against a line key.
Note: If the handset fails to provision please contact your Service Provider.

Yealink T48s Specifications

General

Full duplex	Yes
Lines quantity	- lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Voice codecs	AGC, AJB, CNG, G.711alaw, G.711ulaw, G.722, G.723.1, G.726, G.729A, G.729B, PLC, SILK, VAD, iLBC
Compatible products	Skype for Business
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	Digital
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Power consumption (typical)	4.9 W
Power consumption (Power over Ethernet (PoE))	7.5 W
Front camera	No
Security algorithms	HTTPS, MD5, SRTP, TLS
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	SIP v1 (RFC2543), v2 (RFC3261), LLDP-MED VLAN, IPv4/IPv6, UDP/TCP/DNS-SRV (RFC 3263)
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Display diagonal	7 \
Touchscreen type	Capacitive
Display resolution	800 x 480 pixels
Graphical user interface (GUI) language	Multi
Storage temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Master (outer) case width	660 mm
Master (outer) case length	338 mm
Master (outer) case weight	9000 g
Master (outer) case net weight	8200 g
Quantity per master (outer) case	5 pc(s)

Weight and Dimensions

Depth	226 mm
Width	266 mm
Height	185 mm
Package depth	324 mm
Package width	263 mm
Package height	128 mm