Yealink T42S

The Yealink SIP-T42S VoIP Desk phone is the successor of the Yealink SIP-T42P. It introduces new features and improved audio quality. The IP phone from this line is a high-performance professional tool. It provides superior quality voice connections and has more extensive parameters.

Featuring a large 2.7-inch LCD display, 6 programmable buttons, 2 Gigabit Ethernet ports and a USB 2.0 port, it is ideal for intensive daily use. It can perform auto-provisioning, auto-configuration and auto-update. The T-42S is an easy-to-use telephone that proves to be perfect for business needs.

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Key Features

Print

Printing is a process for mass reproducing text and images using a master form or template.

Data

Data are units of information, usually numeric, that are collected through observation.

Phones

Phone is short for telephone, meaning the instrument used to call others.

Yealink T42S Advanced Call Management

The Yealink SIP-T42S Desk phone is the successor of the popular Yealink SIP-T42s. It has a number of improvements and new features. Among other things, this phone supports 12 SIP accounts instead of 3, and the sound clarity is much better. With its 2.7-inch (192x64p) LCD display, all essential information can be read at a glance.

Your partner’s voice is always clear and natural thanks to the Opus codec. Its role is to improve the sound of the device. Opus codecs offer superior HD audio quality compared to other systems. The Yealink T42S is also hearing aid compatible (HAC). This makes it accessible to everyone, including people with hearing loss.

A reliable IP phone for your business

The Yealink T42S is a professional phone with a large graphic LCD screen capable of managing 3 SIP accounts. Its particularity is to provide 6 function keys with LEDs. It is suitable for companies looking for an easily manageable phone as it has fully automatic provisioning, configuration, and update functions. The Yealink T42S offers all essential telephony features:

Caller name
Number identification
Call transfer
3-way conferencing
Internal communication
And much more

Main Features

Technical properties

IP phone, SIP protocol
12 configurable SIP accounts
Large 2.7″ graphic LCD display
4 navigation keys
6 programmable keys with LEDs
EHS: support for automatic release via wireless headset
HD Voice: HD cordec for high quality sound
2 x 10/100/1000M Gigabit Ethernet ports
Hearing aid compatible handset
USB 2.0 port
Full duplex handsfree
Self-powered PoE: Power over Ethernet cable
Wall mounting possible
Advanced call management: call waiting, conference, transfer…
Multi languages
Opus Codec Support
Power supply not included

Product specifics

SIP 2.0 (RFC3261)
TI TITAN Chip
Compatible with VLAN and QoS
In-band DTMF and out-of-band numbering RFC 2833 DMTF
Proxy mode and peer-to-peer SIP mode
HD Codecs: G722
VoIP Codes: G.711, G723.1, G726, G729A/B

Integration and security aspects

Enterprise directory (XML, LDAP)
Compatible with XML development
SRTP/TLS/HTTPS compatible, AES encryption
TLS (Transport Layer Security) compatible
Compatible with VLAN (802.1 pq) configuration, QoS
Adjustable configuration mode: administrator/user

Specifications

Model	SIP-T42S
LCD	2.7″ graphical LCD
Resolution	192 x 64
LCD Backlight	√
Line	12
PoE	√
GigE	√
Wall Mounting	√
Foot Stand	2 adjustable angles
USB Port (2.0 compliant)	1
Ethernet Port	Dual-port Gigabit Ethernet
Handset Port (RJ-9)	√
Headset Port (RJ-9)	√
External Yealink AC Adapter (optional)	AC 100~240V input and DC 5V/1.2A output
Line Key	6
Memory Key	15 (3 pages of 5 keys)
Yealink EXP50 Expansion Module (Accessory, purchased separately)	X
Yealink EXP40 Expansion Module (Accessory, purchased separately)	x
Yealink EXP20 Expansion Module (Accessory, purchased separately)	X
Yealink EHS36 Wireless Headset Adapter (Accessory, purchased separately)	√
Yealink YHS32 Headset (Accessory, purchased separately)	√
Yealink Bluetooth Adapter BT40 (Accessory, purchased separately)	√
Yealink Wi-Fi Adapter WF40 (Accessory, purchased separately)	√
USB Recording	√
3-way Conferencing	√
HD Voice	HD Speaker HD Handset
Wide-band Codecs	G.722, Opus
Narrow-band Codecs	G.711(A/µ), G.729, G729A, G.726, G.723.1, iLBC, Opus
LCD Type	Fixed
Operating System	Linux
Built-in Bluetooth	X
Built-in Wi-Fi	X
USB Headset (Accessory, purchased separately)	√
Camera	X
Video Resolution	X
Video Codecs	X
3-way Video Conferencing	X
5-way video/audio mixed conferencing	X
HDMI	X

Yealink T42S adapts to your environment

Yealink T42S is compatible with SIP environments:

Alcatel-Lucent
Aastra
Avaya
3CX
Asterisk
Sipleo

You can choose between PoE power and conventional power supply. The supplied Ethernet cable allows the terminal to be powered by PoE. For a conventional power supply, you can purchase a power supply unit separately.

YEALINK T42S FOCUS ON YOUR CONVERSATION

Get the most out of your conversations with the T42S and Yealink audio performance. With its Full Duplex HD quality, you’ll hear the person you’re talking to as if he or she was sitting next to you. In the same way, you’ll be perfectly heard by your callers. The communication will be efficient, clear, and pleasant.

You have all your devices at your disposal with the WIFI and Bluetooth connections integrated into the device. This allows you to move freely in your workplace while always being connected.