Yealink SIP-T48S User Manual

Advanced Phone Features
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The touch screen prompts “Delete this Message?”.
3. Tap OK to delete this message or Cancel to cancel.
You can also delete all text messages by tapping the Delete All soft key. For more information,
refer to the above steps.
Note
Voice Mail
You can leave voice mails for someone else using the SIP-T48S IP phone. You can also listen to
the voice mails that are stored in a voice mailbox. This feature is set up on the server side. It is
not available on all servers.
When receiving a new voice mail, the phone will play a warning tone. The power indicator LED
will slowly flash red, and the touch screen will prompt “n New Voice Mail(s)” (“n” indicates the
number of unread voice messages, e.g., 19 New Voice Mail(s)) and an icon .
You can also delete a specific message by pressing the Delete soft key after viewing.

Yealink SIP-T48S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Display diagonal	7 \
Display resolution	800 x 480 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Front camera	No
Voice codecs	CNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Keypad number of keys	42
Security algorithms	AES
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, HTTPS
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	225 mm
Width	266 mm
Height	185 mm
Package depth	263 mm
Package width	324 mm
Package height	128 mm