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The SIP-T42U IP phone is a feature-rich business tool for excellent communications and extended functionality. Coming
with plentiful built-in programmable keys, this 12-line IP phone guarantees the enhanced productivity. United Yealink
Optima HD Voice technology and wideband codec of Opus, the T42U awards you the superb audio quality and
crystal-clear voice communications. The phone feels quicker and more responsive when performing call features.
Moreover, the T42U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come
true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant
appearance as the T4 line, but with improvements for greater interoperability and better collaboration.

• 2.7” 192×64-pixel graphical LCD with backlight
• Dual USB ports
• Dual firmware images
• Opus codec support
• T4U Auto-P template unified
• T4U firmware unified
• Up to 12 SIP accounts
• PoE support
• Dual-port Gigabit Ethernet
• USB headset and EHS support
• Wi-Fi via WF40/WF50
• Bluetooth via BT40/BT41
• Stand with 2 adjustable angles
• Wall mountable

Especially designed for busy executives and professionals, Yealink SIP-T53 is an easy-to-use Prime Business Phone with an adjustable 3.7-inch graphical LCD that you can easily and flexibly find the comfortable viewing angle according to the personal and environmental needs. Working with Yealink Bluetooth USB Dongle BT40 and Yealink Wi-Fi USB Dongle WF40/WF50, the SIP-T53 IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection. Benefitting from these features, the Yealink SIP-T53 is a powerful and expandable office phone that delivers optimum desktop efficient and productivity. Specificions: * 3.7” 360×160-pixel graphical LCD with backlight * Adjustable LCD screen * Bluetooth via BT40 * Wi-Fi via WF40/WF50 * USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 * Up to 12 VoIP accounts * Dual-port Gigabit Ethernet * PoE support * HAC Handset * Paperless label design * Wall mountable

Designed for busy executives and professional, the SIP-T46U IP phone is an ultimate communication tool that has the
better overall performance. The phone employs an appealing high-resolution TFT color display that looks brighter and
more vibrant. United Yealink Optima HD Voice technology and wideband codec of Opus, the T46U awards you the
superb audio quality and crystal-clear voice communications. Moreover, the T46U puts dual USB ports in a phone that
makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according
to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements
for greater interoperability and better collaboration.

• 4.3” 480 × 272-pixel color display with backlight
• Opus codec support
• Dual USB ports
• Dual firmware images
• T4U Auto-P template unified
• T4U firmware unified
• Up to 16 SIP accounts
• Dual-port Gigabit Ethernet
• PoE support
• USB headset and EHS support
• Wi-Fi via WF40/WF50
• Bluetooth via BT40/BT41
• USB recording
• Supports color-screen expansion modules
• Stand with two adjustable angles
• Wall mountable

Especially designed for busy executives and professionals, Yealink SIP-T54W is an easy-to-use Prime Business Phone with an adjustable 4.3-inch color LCD screen that you can easily and flexibly find the comfortable viewing angle according to the personal and environmental needs. With the built-in Bluetooth 4.2 and the built-in dual band 2.4G/5G Wi-Fi, the SIP-T54W IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection. Benefitting from these features, the Yealink SIP-T54W is a powerful and expandable office phone that delivers optimum desktop efficient and productivity. Specifications: * 4.3” 480 × 272-pixel color display with backlight * Adjustable LCD screen * Built-in Bluetooth 4.2 * Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/n/ac) * USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 * Up to 16 VoIP accounts * Dual-port Gigabit Ethernet * PoE support * HAC Handset * Paperless label design * Wall mountable

Especially designed for busy executives and professionals, Yealink SIP-T53W is an easy-to-use Prime Business Phone with an adjustable 3.7-inch graphical LCD that you can easily and flexibly find the comfortable viewing angle according to the personal and environmental needs. With the built-in Bluetooth 4.2 and the built-in dual band 2.4G/5G Wi-Fi, the SIP-T53W IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection. Benefitting from these features, the Yealink SIP-T53W is a powerful and expandable office phone that delivers optimum desktop efficient and productivity. Specifications: * 3.7” 360×160-pixel graphical LCD with backlight * Adjustable LCD screen * Built-in Bluetooth 4.2 * Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/n/ac) * USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 * Up to 12 VoIP accounts * Dual-port Gigabit Ethernet * PoE support * HAC Handset * Paperless label design * Wall mountable

• Enterprise grade telefoon
• Wideband HD audio speaker en headset
• Tot maximaal 9 lijnen
• 2 lijnen met LED aanduiding
• 4 lijnen grafisch LCD display met backlight
• 8 programmeerbare toetsen
• 11 voorgeprogrammeerde functie toetsen
• Dual 1000 Gigabit Ethernet poorten met hardware switch
• Geschikt voor PoE en AC adapter
• PoE Class 2, miliue vriendelijk toestel
• 30graden low profile en 60 graden high profile standaard
• EHS en 4-pin headset aansluitingen
• Geschikt voor 3 toets uitbreiding panelen

Exclusief adapter

Especially designed for busy executives and professionals, Yealink SIP-T57W is an easy-to-use Prime Business Phone with an adjustable 7-inch multi-point touch screen that you can not only easily and flexibly find the comfortable viewing angle according to the personal and environmental needs, but also get a rich visual presentation and easy navigation with just one-touch. With the built-in Bluetooth 4.2 and the built-in dual band 2.4G/5G Wi-Fi, the SIP-T57W IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection. Benefitting from these features, the Yealink SIP-T57W is a powerful and expandable office phone that delivers optimum desktop efficient and productivity. Specifications: * 7” 800 × 480 capacitive adjustable touch screen * Adjustable LCD screen * Built-in Bluetooth 4.2 * Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/n/ac) * USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 * Up to 16 VoIP accounts * Dual-port Gigabit Ethernet * PoE support * HAC Handset * Paperless label design * Wall mountable

Yealink presents a dynamic business communication solution to executives and professionals with the new SIP-T48U IP
phone. The phone employs an appealing large touch screen that makes the switch between pages and applications swift,
easy and convenient. United Yealink Optima HD Voice technology and wideband codec of Opus, the T48U awards you
the superb audio quality and crystal-clear voice communications. Moreover, the T48U puts dual USB ports in a phone that
makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according
to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for
greater interoperability and better collaboration.

• 7” 800 × 480-pixel color touch screen with backlight
• Opus codec support
• Dual USB ports
• Dual firmware images
• T4U Auto-P template unified
• T4U firmware unified
• Up to 16 SIP accounts
• Dual-port Gigabit Ethernet
• PoE support
• Paperless label design
• Headset, EHS support
• Wi-Fi via WF40/WF50
• Bluetooth via BT40/BT41
• USB recording
• Supports color-screen expansion modules
• Stand with two adjustable angles
• Wall mountable

Entry-level IP Phone with 4 Lines & Color LCD An entry-level color screen IP phone with high performance, Yealink SIP-T33G offers support for 4 lines and includes local 5-way conferencing. For its fashionable appearance as well as an extra-large 320×240-pixel color display with backlight, it brings comfortable operation experience and clear visual experience for users. Designed with a new powerful chip, it helps greatly improved work efficiency. Additional features include a dual-port Gigabit Ethernet with integrated PoE, EHS35 support for Yealink wireless headset, and adjustable multi-angle stand support. These features allow the SIP-T33G to be a high-quality but cost-effective classic IP phone that maximizes productivity in both small and large office environments Audio Features * HD voice: HD handset, HD speaker * Smart Noise Filtering * Wideband codec: Opus, G.722 * Narrowband codec: G.711(A/µ), G.723.1, G.729, G.729A, G.726, iLBC * DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO * Full-duplex hands-free speakerphone with AEC VAD, CNG, AEC, PLC, AJB, AGC Phone Features * 4 VoIP accounts * Call hold, mute, DND * One-touch speed dial, hotline * Call forward, call waiting, call transfer * Group listening, SMS, emergency call * Redial, call return, auto answer * Local 5-way conferencing * Direct IP call without SIP proxy * Ring tone selection/import/delete * Set date time manually or automatically * Dial plan * XML Browser, action URL/URI * Integrated screenshots RTCP-XR, VQ-RTCPXR * Enhanced DSS Key Network and Security * SIP v1 (RFC2543), v2 (RFC3261) * Call server redundancy supported * NAT traversal: STUN mode * Proxy mode and peer-to-peer SIP link mode * IP assignment: static/DHCP * HTTP/HTTPS web server * Time and date synchronization using SNTP * UDP/TCP/DNS-SRV (RFC 3263) * QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP * SRTP for voice * Transport Layer Security (TLS) * HTTPS certificate manager * AES encryption for configuration file * Digest authentication * OpenVPN, IEEE802.1X * IPv6 * LLDP/CDP/DHCP VLAN * ICE Package Features * Package content: ** Yealink SIP-T33G IP phone ** Handset with handset cord ** Ethernet Cable (1.5m CAT5E UTP Cable) ** Stand ** Quick Start Guide ** Power Adapter (Optional) * Qty/CTN: 10 PCS * N.W/CTN: 9.56 kg * G.W/CTN: 10.52 kg * Giftbox size: 238 mm*210 mm*103 mm * Carton Meas: 535 mm*443 mm*250 mm

Gigabit IP Phone with 2 Lines & HD voice As a very fashionable and friendly entry-level Gigabit IP phone, Yealink SIP-T31G has an extra-large 132×64-pixel graphical LCD with backlight that brings clear visual experience for users. The T31G offers support for two VoIP accounts and includes local 5-way conferencing to maximize productivity. Working with the adjustable multi-angle stand, the T31G IP phone ensures you to work in different situation. Meanwhile, the T31G features built-in Power over Ethernet (PoE) and superb high definition (HD) sound quality. Easy-to-use and powerful features together with reasonable price deliver excellent voice communications solution. Audio Features * HD voice: HD handset, HD speaker * Smart Noise Filtering * Wideband codec: Opus, G.722 * Narrowband codec: G.711(A/µ), G.723.1, G.729, G.729A, G.726, iLBC * DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO * Full-duplex hands-free speakerphone with AEC VAD, CNG, AEC, PLC, AJB, AGC Phone Features * 2 VoIP accounts * Call hold, mute, DND * One-touch speed dial, hotline * Call forward, call waiting, call transfer * Group listening, SMS, emergency call * Redial, call return, auto answer * Local 5-way conferencing * Direct IP call without SIP proxy * Ring tone selection/import/delete * Set date time manually or automatically * Dial plan * XML Browser, action URL/URI * Integrated screenshots * RTCP-XR, VQ-RTCPXR * Enhanced DSS Key Network and Security * SIP v1 (RFC2543), v2 (RFC3261) * Call server redundancy supported * NAT traversal: STUN mode * Proxy mode and peer-to-peer SIP link mode * IP assignment: static/DHCP * HTTP/HTTPS web server * Time and date synchronization using SNTP * UDP/TCP/DNS-SRV (RFC 3263) * QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP * SRTP for voice * Transport Layer Security (TLS) * HTTPS certificate manager * AES encryption for configuration file * Digest authentication * OpenVPN, IEEE802.1X * IPv6 * LLDP/CDP/DHCP VLAN * ICE Package Features * Package content: ** Yealink SIP-T31G IP phone ** Handset with handset cord ** Ethernet Cable (1.5m CAT5E UTP Cable) ** Stand ** Quick Start Guide **Power Adapter (Optional) * Qty/CTN: 10 PCS * N.W/CTN: 9.98 kg * G.W/CTN: 10.836 kg * Giftbox size: 213 mm*210 mm*103 mm * Carton Meas: 535 mm*443 mm*227 mm