Upgrade Highlights
- Continuation of the elegant T4 design
- Device performance enhancement, faster response on the phone’s user interface
- Opus codec support
- Enhanced speaker performance
- Additional USB port for the T42S & T41S (USB functions available circa 1Q2017)
- Unified Firmware
- Hearing adi compatible(HAC) Handset
SIP-T40P
– Revolutionarily new design
– Yealink Optima HD voice
– 2.3″ 132×64-pixel graphical LCD with backlight
– Up to 3 SIP accounts
– Paper label free design
– PoE support
SIP-T40G
– Revolutionarily new design
– Yealink Optima HD voice
– 2.3″ 132×64-pixel graphical LCD with backlight
– Up to 3 SIP accounts
– Paper label free design
– PoE support
SIP-T41S
– Revolutionnarily new design
– Yealing Optima HD voice
– 2.7” 192×64-pixel qraphical LCD with backlight
– Up to 6 SIP acount
– Paper label free design
– PoE support
SIP-T42S
– Revolutionnarily new design
– Yealing Optima HD voice
– Dual-port Gigabit Ethernet
– 2.7” 192×64-pixel qraphical LCD with backlight
– Up to 12 SIP acount
– Paper label free design,
– PoE support.
SIP-T46S
– Revolutionnarily new design
– Yealing Optima HD voice
– Dual-port Gigabit Ethernet
– 4.3” 480 x 272-pixel color display with backlight
– Wi-Fi via WF40
– Up to 16 SIP acount, Paper label free design
SIP-T48S
– Revolutionnarily new design
– Yealing Optima HD voice
– Dual-port Gigabit Ethernet
– 7” 800 x 480-pixel touch screen with backlight
– Wi-Fi via WF40
– Bluetooth via BT40
– Up to 16 SIP acount
- Continuation of the elegant T4 design
- Device performance enhancement, faster response on the phone’s user interface
- Opus codec support
- Enhanced speaker performance
- Additional USB port for the T42S & T41S (USB functions available circa 1Q2017)
- Unified Firmware
- Hearing adi compatible(HAC) Handset

SIP-T40P
– Revolutionarily new design
– Yealink Optima HD voice
– 2.3″ 132×64-pixel graphical LCD with backlight
– Up to 3 SIP accounts
– Paper label free design
– PoE support

SIP-T40G
– Revolutionarily new design
– Yealink Optima HD voice
– 2.3″ 132×64-pixel graphical LCD with backlight
– Up to 3 SIP accounts
– Paper label free design
– PoE support

SIP-T41S
– Revolutionnarily new design
– Yealing Optima HD voice
– 2.7” 192×64-pixel qraphical LCD with backlight
– Up to 6 SIP acount
– Paper label free design
– PoE support

SIP-T42S
– Revolutionnarily new design
– Yealing Optima HD voice
– Dual-port Gigabit Ethernet
– 2.7” 192×64-pixel qraphical LCD with backlight
– Up to 12 SIP acount
– Paper label free design,
– PoE support.

SIP-T46S
– Revolutionnarily new design
– Yealing Optima HD voice
– Dual-port Gigabit Ethernet
– 4.3” 480 x 272-pixel color display with backlight
– Wi-Fi via WF40
– Up to 16 SIP acount, Paper label free design
