Yealink SIP-T42S Ultra-elegant Gigabit IP Phone

Description

Yealink T42S Technical Specification

Audio Features

• HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Wideband codec: Opus*, G.722
• Narrowband codec: Opus*, G.711(A/µ), G.723.1, G.729AB, 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

• 12 VoIP accounts
• One-touch speed dial, redial
• Call forward, call waiting
• Call transfer, call hold
• Call return, group listening
• Mute, auto answer, DND
• 3-way conference call
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Hotline, emergency call
• Set date time manually or automatically
• Dial plan, XML Browser, Action URL/URI
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
• USB port (2.0 compliant): Bluetooth earphone through BT40 (pending), Wi-Fi through WF40 (pending), USB call recording through USB flash drive (pending)
• Enhanced DSS key