Điện thoại IP Yealink SIP-T42S

Điện thoại IP YeaLink SIP-T42S tích hợp màn hình LCD, hỗ trợ 6 tài khoản SIP, kết nối mạng tốc độ cao Gigabit, PoE và các phím bấm có thể lập trình, tiện lợi khi sử dụng. Điện thoại VoIP YeaLink SIP-T42S cung cấp một trải nghiệm nhanh, mượt với âm thanh đàm thoại chất lượng cao với công nghệ Voice Yealink Optima HD và Codec Opus.

Điện thoại IP Yealink SIP-T42S cung cấp các tính năng sau:

• Màn hình LCD đen trắng 2.7 inch.
• Hỗ trợ 12 tài khoản SIP
• 2 cổng mạng Gigabit, tích hợp PoE
• Điều chỉnh âm lượng, chọn nhạc chuông
• Cài đặt đơn giản, linh hoạt và bảo mật
• Tương thích IPv6
• Nguồn điện 100-240VAC

Thông số kỹ thuật điện thoại Yealink SIP-T42S

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

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
• Call park, call pickup
• Executive and Assistant
• Centralised 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-colour (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

• 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): 1.69-5.0W
• Power consumption (PoE): 2.47-12.5W
• Dimension (W*D*H*T): 212mm*189mm*175mm*54mm
• Operating humidity: 10~95%
• Operating temperature: -10~50°C

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 using MD5/MD5-sess
• OpenVPN, IEEE802.1X
• IPv6
• LLDP/CDP/DHCP VLAN
• ICE