Yealink SIP-T48S User Manual

Customizing Your Phone
109
 Forward
 Transfer
 Hold
 DND
 Group Listening
 Zero Touch
 URL
 Phone Lock
 Retrieve
 Directory
For the features not listed above, refer to Basic Call Features on page 131 and Advanced Phone
Features on page 181. For more information, contact your system administrator.
Line
You can use this key feature to accept incoming calls, place active calls on hold or resume a
held call. It performs in the same way as a hard line key.
Dependencies: Type (Line)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Usage: When the phone receives an incoming call,
1. Tap the Line key to accept the incoming call.
2. Tap the Line key to place a new call and the active call is placed on hold.
3. Tap the Line key again to resume the held call.
Speed Dial
You can use this key feature to speed up dialing the numbers frequently used or hard to
remember.
Dependencies: Type (Speed Dial)
Account ID (the account this feature will be applied to)
Label (key label displayed on the touch screen)
Value (the number you want to dial out)
Usage: Tap the Speed Dial key to dial out the number specified in the Value field, using the
account selected from the Account ID field.
Voice Mail
You can use this key feature to quickly connect voice mail. For more information, refer to Voice
Mail on page 239.

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