The well-made  Yealink SIP-42G 3 line Ultra Elegant IP Gigabit Desk Phone w/ (4-Port POE Switch, 4 POE Ports, 4 Extra Coil Cords) is a feature-rich sip phone for business. The 12-Line IP Phone has been designed by pursuing ease of use in even the tiniest details. Delivering a superb sound quality as well as a rich visual experience. Supports seamless migration to GigE-based network infrastructure. With programmableKeys, the IP Phone supports vast productivity-enhancing features

Kit Includes:

• 4 Pieces of SIP-T42G
• 1 4-Port 10/100/1000 GB POE Switch, w/ 4 POE Ports
• 4 Extra Coil Cords

Revolutionarily new design

Yealink's SIP Phones continue to evolve, the T4 Series have been designed by pursuing ease of use in even the tiniest details, these new design include paper label free design, new foot stand allows two positions for the device, non-slip rubber feet, ergonomic recessed buttons, etc.

HD Audio

Yealink Optima HD Voice refers to the combination of software and hardware design as well as the implementation of wideband technology to maximize the acoustic performance. Coupled with advanced acoustic clarity technology such as full duplex, echo cancellation, Adaptive jitter buffer etc. Creating an amazing face-to-face live experience.

Enhanced Call Management

The SIP-T42G supports vast productivity-enhancing feature such as SCA, BLF List, call forward, call transfer, 3-way conference. Three pages of 6 flexible buttons are shown on the display can be programmed up to 15 various features. Support Yealink YHS32, With EHS36 user can control phone through wireless headsets.

Efficient Installation and Provisioning

Integrated IEEE 802.3af Power-over-Ethernet allows easy deployment with centralized powering and backup. The SIP-T42G support the FTP, TFTP, HTTP, and HTTPS protocols for file provisioning and are configured by default to use Trivial File Transfer Protocol (TFTP), supports AES encrypted XML configuration file.

Highly secure transport and interoperability

The Communicator uses SIP over Transport Layer Security (TLS/SSL) to provide service providers with the latest technology for enhanced network security. The range is certified compatible with 3CX, Asterisk, and Broadsoft Broadworks, ensuring excellent compatibility with leading soft switch suppliers.

Yealink SIP-T41P Core Features

• Revolutionarily new design
• Yealink Optima HD voice
• 2.7" 192x64-pixel graphical LCD with backlight
• Up to 3 SIP accounts
• Paper label-free design
• PoE support
• Headset, EHS support
• Integrated stand with 2 adjustable angles
• Simple, flexible and secure provisioning options
• Yealink SIP-T41P Technical Specifications

Audio Features

• HD voice: HD handset, HD speaker
• Wideband codec: G.722
• Codes: G.722, G.711 (A/μ), G.723, G.729AB, G.726, GSM
• 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

• 3 VoIP accounts
• One-touch speed dial, redial
• Call forward, Call waiting, Call transfer, Call hold
• Call return, group listening
• Mute, Auto answer, DND
• Call history: dialed/received/missed/forwarded
• 3-way conferencing
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Hotline, Emergency call
• Set date time manually or automatically
• Dial Plan, Push XML, Action URL

Directory

• Local phonebook up to 300 entries
• Broadsoft Contacts: Custom/Enterprise/Personal/Common/Search/Speed Dial
• Black list
• XML/LDAP remote phonebook
• Intelligent search method
• Phonebook search/import/export

IP-PBX and BroadSoft Features

• Busy lamp field (BLF), BLF list
• Bridged line appearance (BLA)/SCA
• Anonymous call, Anonymous call rejection
• DND & Forward synchronization
• BroadWorks Anywhere
• N-Way Calling, Remote Office
• Network Call Logs - Basic
• Broadsoft call center features
• Message waiting indicator (MWI)
• Voice mail, Call park, Call pickup
• Intercom, paging, Music on hold
• Call recording

Display and Indicator

• 2.7" 192x64 pixel 4-level grayscale 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
• National language selection
• Caller ID with name, number

Feature keys

• 6 line keys with LED
• 6 line keys can be programmed up to 15 various features (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

• 2xRJ45 10/100M Ethernet ports
• 1xRJ9 (4P4C) handset port
• 1xRJ9 (4P4C) headset port
• Power over Ethernet (IEEE 802.3af), Class 2

Other Physical Features:

• Stand with 2 adjustable angles
• Power consumption (PSU): 1.4W-3.9W
• Dimension (W*D*H*T): 212mm*189mm*175mm*54mm
• Operating humidity: 10~95%
• Storage temperature: -10~50C
• Management
• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• BroadSoft device management
• Zero-sp-touch, SNMP
• Provisioning server redundancy supported
• Reset to factory, Reboot
• Package tracing export, System log

Network and Security:

• SIP v1 (RFC2543), v2 (RFC3261)
• NAT transverse: 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 the configuration file
• Digest authentication using MD5/MD5-sess
• OpenVPN, IEEE802.1X
• IPv6

Dimensions:  24.41  * 10.08 * 9.17 inches

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