Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
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If the voice mail pop-up message box disappears, it won't pop up again unless the user receives
a new voice mail or the user re-registers the account that has unread voice mail(s).
Note
To leave a voice mail:
You can leave a voice mail for someone else when he/she is busy or inconvenient to answer the
call. Follow the voice prompt from the system server to leave a voice mail, and then hang up.
To configure voice mail access codes via phone user interface:
1. Tap ->Message->Set Voice Mail Code.
2. Enter the voice mail access code (e.g., *4) in the desired account field.
You can tap the IME soft key to change the input mode.
3. Tap the Save soft key to accept the change or to cancel.
Note
To listen to voice mails:
1. When the touch screen prompts that the phone receives a new voice mail, you can press
or tap Connect to dial out the voice mail access code.
2. Follow the voice prompt to listen to your voice mails.
You can configure the phone not to display the pop-up prompt, contact your system
administrator for more information.
The icon on the status bar has a counter indicating the number of messages you haven’t
heard yet.
Voice mail access codes must be predefined on the system server. Contact your system
administrator for the more information.

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