Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
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To place a call on hold:
1. Press or tap the Hold soft key during a call.
The touch screen indicates that the call is on hold.
Note
To resume a held call:
1. Press or tap the Resume soft key.
Multiple Calls on Hold:
If multiple calls are placed on hold, do one of the following:
- Tap the desired call, and then press or tap the Resume soft key to retrieve it.
- Tap the desired call, and then tap the corresponding line key to retrieve it.
The phone will beep softly every 30 seconds to remind you that you still have a call on hold. The
phone ignores engaged audio device (handset or headset) and switches to Speakerphone to play
the hold tone by default. The Speakerphone key will light up for 1 second.

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