yea-sip-t42s

Yealink Optima HD Voice
Dual port Gigabit Ethernet
Codecs: Opus, G.722, G.711 (A/u), G.723.1, G.729AB, G.726, iLBC
Display: 2.7″ 192×64 pixel graphical LCD with backlight
Up to 12 SIP accounts
6 Line keys with dual color LEDs can be programmed with up to 15 features (3 page view)
4 Soft Keys
Paper label-free design
One RJ9 headset port with EHS support (with EHS36 wireless headset adapter)
Integrated stand with 2 adjustable angles
Wall mountable with WMB-T4S kit
PoE 802.3af, class 2
No power supply included (PS5V1200US)
Upgrades from T42G
Device performance enhancement with faster response on the phone’s user interface
Opus support
Enhanced speaker performance
USB port for Bluetooth headset with BT41 dongle or WiFi support with WF40 dongle
United firmware
Hearing aid compatible handset