The SIP-T42S VoIP phone features Yealink Optima HD Voice technology. A combination of powerful software and hardware works together to provide incredible, lifelike conversations through the phone's speakerphone, handset or RJ9 port.
Read moreThe SIP-T42S VoIP phone features Yealink Optima HD Voice technology. A combination of powerful software and hardware works together to provide incredible, lifelike conversations through the phone's speakerphone, handset or RJ9 port.
On the Yealink T42S phone's attractive interface are five feature keys, including message, headset, mute, redial and speakerphone. Four context-sensitive keys around the display and six line keys with LEDs give the phone more possibilities. Behind the phone is a dual-port gigabit Ethernet switch.
Connectivity Type: VoIP
Protocol Support: SIP, IPv6
Line Appearances: 12
Switch Ports: 2x 10/100/1000 Ethernet
PoE: 802.3af compliant
Wifi: via USB WF40 Dongle
Addt'l Ports: RJ9 headset
Display: 2.7" backlit TFT LCD
Resolution: 192 x 64 pixels
Speakerphone: full duplex
Audio Codecs: G.722, G.711, G.723, G.729, G.726, GSM, iLBC
Voice Quality: wideband, narrowband
Echo Cancellation: yes
