Điện thoại IP Yealink SIP-T48G tích hợp màn hình màu LCD kích thước lớn 7 inch mang lại trải nghiệm sử dụng tiện lợi khi chuyển các ứng dụng và hiển thị thông tin. Điện thoại Yealink SIP-T48G hỗ trợ kết nối mạng tốc độ cao Gigabit, PoE và khả năng kết nối tới các thiết bị ngoại vi linh hoạt.
Contents
Điện thoại IP Yealink SIP-T48G cung cấp các tính năng sau:
- Màn hình màu LCD 7 inch
- Hỗ trợ 16 tài khoản SIP
- Công nghệ Voice Yealink Optima HD
- 2 cổng mạng Gigabit Ethernet
- Hỗ trợ lớp PoE
- Hỗ trợ tai nghe EHS, tai nghe Bluetooth
- Hỗ trợ module mở rộng các tính năng Wifi, Bluetooth
- An toàn và bảo mật.
- Nguồn điện: PoE
- Nguồn điện tùy chọn: Adapter nguồn 100~240VAC
Thông số kỹ thuật điện thoại VoIP Yealink SIP-T48G
Yealink T48G Technical Specification
Audio Features
- HD voice: HD handset, HD speaker
- Codecs: G.722, 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
- 16 VoIP accounts
- Call hold, mute, DND
- One-touch speed dial, hotline
- Call forward, call waiting, call transfer
- Group listening, emergency call
- Redial, call return, auto answer
- 3-way conferencing
- Direct IP call without SIP proxy
- Ring tone selection/import/delete
- Set date time manually or automatically
- Dial plan, XML Browser, action URL/URI
- RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
Directory
- Local phonebook up to 1000 entries
- Black list
- XML/LDAP remote phonebook
- Intelligent search method
- 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
- Remote office, hot-desking
- Message Waiting Indicator (MWI)
- Voice mail, call park, call pickup
- Intercom, paging, music on hold
- Call completion, call recording
Display and Indicator
- 7″ 800 x 480-pixel colour touch screen with backlight
- 24 bit depth colour
- LED for call and message waiting indication
- Wallpaper
- Intuitive user interface with icons and soft keys
- National language selection
- Caller ID with name, number and photo
Feature keys
- 29 one-touch DSS keys
- 7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone
- 6 navigation keys
- 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 3
- Built-in a USB port, support Bluetooth headset (Through USB Dongle)
- 1xRJ9 (4P4C) handset port
- 1xRJ9 (4P4C) headset port
- 1XRJ12 (6P6C) EXT port: Supports up to 6 Expansion Modules for an attendant console application
Other Physical Features
- Wall mountable (optional)
- External universal AC adapter (optional): AC 100~240V input and DC 5V/2A output
- Power consumption (PSU): 2.0-6.4W
- Power consumption (PoE):2.4-10.5W
- Dimension(W*D*H*T): 266mm*226mm*185mm*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 transverse: STUN mode
- Proxy mode and peer-to-peer SIP link mode
- IP assignment: static/DHCP/PPPoE
- 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
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