Yealink SIP-T48S User Manual

Basic Call Features
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6. Tap the Save soft key to accept the change or to cancel.
Anonymous call is configurable via web user interface at the path Account->Basic.
To place an anonymous call:
1. Using the specific line on the phone to place a call to phone B.
The touch screen of phone B prompts an incoming call from anonymity.
Anonymous Call Rejection
You can use anonymous call rejection to reject incoming calls from anonymous callers.
Anonymous call rejection automatically rejects incoming calls from callers who deliberately
block their identities and numbers from being displayed. Anonymous call rejection is
configurable on a per-line basis. You can also configure the phone to send anonymous call
rejection on/off code to the server to activate/deactivate anonymous call rejection on the server
side.
To configure anonymous call rejection via phone user interface:
1. Tap ->Features->Anonymous.
2. Tap the desired line.
3. Tap the On radio box of the Anony Rejection field.
4. (Optional.) Tap the On Code or Off Code radio box of the Send Rejection Code field.
5. (Optional.) Enter the anonymous call rejection on code and off code respectively in the On
Code and Off Code field.

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