Yealink SIP-T42S

Audio Features

•  HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Wideband codec: AMR-WB (optional), Opus*, G.722
• Narrowband codec: AMR-NB (optional), Opus*,  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

•  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/BT41,

– Contact synchronization through BT40/BT41,

– Wi-Fi through WF40/WF50,

– USB call recording through USB flash drive

USB connectivity to Yealink UH36 headset:

– Basic functions: Answer / end, call mute

– Enhanced function: audio optimization, redial, call hold, volume synchronization, multiple calls control

Enhanced DSS key

Directory

• Local phonebook up to 1000 entries
• Black list
• XML/LDAP remote phonebook
• Smart dialing
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

IP-PBX Features

• Busy Lamp Field (BLF), Bridged Line Apperance (BLA)
• Anonymous call, anonymous call rejection
• Hot-desking, voice mail
• Flexible seating, Executive and Assistant
• Call park, call pickup
• Centralized call recording
• Visual voice mail
• Call recording
• Display and Indicator
• 2.7″ 192×64-pixel graphical LCD with backlight
• LED for call and message waiting indication
• Dual-color (red or green) illuminated LEDs for line status information
• Intuitive user interface with icons and soft keys
• Multilingual user interface
• Caller ID with name and number
• Power saving

Feature keys

• 6 line keys with LED
• 6 line keys can be programmed up to 15 paperless DSS keys (3-page view)
• 5 features keys: message, headset, mute, redial, hands-free speakerphone
• 4 context-sensitive “soft” keys
• 6 navigation keys
• 2 volume control keys
• Illuminated mute key
• Illuminated headset key
• Illuminated hands-free speakerphone key

Interface

• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), Class 2
• 1 x USB port (2.0 compliant)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port
• 1 x RJ12 (6P6C) EHS port

Other Physical Features

• Color: Classic Grey
• Stand with 2 adjustable angles
• Wall mountable
• External Yealink AC adapter (optional)：
•     AC 100~240V input and DC 5V/1.2A output
• Power consumption (PSU): 1.7-3.2W
• Power consumption (PoE): 2.5-4.7W
• Dimension (W*D*H*T):    212mm*189mm*175mm*54mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C (+14~122°F)

Management

• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• Zero-sp-touch, TR-069
• Phone lock for personal privacy protection
• Reset to factory, reboot
• Package tracing export, system log

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-T42S IP phone

– Handset with handset cord

– Ethernet Cable (2m CAT5E UTP Cable)

– Stand

– Quick Start Guide

– Power Adapter (Optional)

– Wall Mount Bracket (Optional)

Qty/CTN: 5 PCS> N.W/CTN: 6.4 kg

G.W/CTN: 7.0 kg

Giftbox size: 246mm*223mm*120mm

Carton Meas: 627mm*256mm*235mm