Display:
- Screen Type: 4.3-inch color LCD display
- Resolution: 480 x 272 pixels
- Backlit: Yes, 5-level contrast adjustment
- Display Lines: 3 lines for displaying call information and features
Audio:
- HD Voice Support: Yes, for wideband audio
- Audio Codecs Supported:
- G.722 (Wideband)
- G.711 (u/a)
- G.729
- G.723.1
- iLBC
- G.726
- Opus (for high-definition calls)
- Hands-Free Features:
- Full-duplex speakerphone with echo cancellation
- Advanced noise suppression
- Headset Support: Yes, via 3.5mm jack for wired headsets and USB for wireless headsets (dongle required)
Line and Call Features:
- SIP Accounts: Supports up to 12 SIP accounts
- Call Management Features:
- Call Hold
- Call Transfer (Attended, Blind)
- Call Forwarding (Unconditional, Busy, No Answer)
- Call Waiting
- 3-way Conference Calling
- Call Park and Call Retrieval
- Redial, Call History (Missed, Dialed, Received)
- Do Not Disturb (DND)
- Programmable Keys: 6 programmable keys with self-labeling for easy customization (e.g., speed dial, BLF, call forwarding)
- Video Support: Basic video support through the device’s LCD, depending on external camera options and system configuration
Connectivity:
- Ethernet Ports:
- 2 x 10/100/1000 Gigabit Ethernet Ports (1 LAN, 1 PC)
- Auto-negotiation and Auto-MDI/MDX support
- Power over Ethernet (PoE): Yes, supports IEEE 802.3af (PoE) for powering via the Ethernet cable
- USB Ports: 1 x USB 2.0 port for connecting accessories (headsets, Bluetooth dongles)
- Bluetooth Support: Yes, Bluetooth support via USB Bluetooth dongle (sold separately)
Power:
- Power Supply:
- 5V/1A DC power adapter (included)
- Power over Ethernet (PoE) as an alternative power source
- Energy Efficiency: Designed for low energy consumption, with support for PoE and optimized power management during idle times
Security:
- Encryption Protocols:
- TLS (Transport Layer Security) for secure signaling
- SRTP (Secure Real-Time Transport Protocol) for secure media encryption
- HTTPS for secure web access
- VPN support for remote secure connections
- IEEE 802.1X for network authentication
- VLAN Support: Yes, supports IEEE 802.1Q VLAN tagging for network segmentation and QoS (Quality of Service)
Network:
- Supported Protocols:
- SIP v2, TCP/UDP, RTP/RTCP, HTTP, HTTPS
- SNMP for network monitoring
- DHCP, Static IP, PPPoE support
- DNS, NTP, and TFTP/FTP/HTTP/HTTPS for provisioning and updates
- Quality of Service (QoS): Support for Layer 3 QoS (IEEE 802.1p/Q tagging and DSCP) for prioritized traffic handling
Management:
- Provisioning Methods:
- Automatic provisioning using Yealink Redirection Server
- Centralized management via Yealink Device Management Platform (YDMP) or Yealink Cloud Management (YMS)
- Remote firmware updates via TFTP, FTP, HTTP, and HTTPS
- Web Interface: Web-based interface for configuration and management
- Compatibility: Compatible with most SIP-based PBX systems, including Asterisk, Broadsoft, 3CX, and others
- Firmware Upgrade: Supports firmware upgrades over the network (TFTP/FTP/HTTP/HTTPS)
Physical:
- Dimensions (L x W x H): 225mm x 210mm x 165mm (8.86″ x 8.27″ x 6.50″)
- Weight: 1.2 kg (2.65 lbs) including stand
- Stand: Adjustable with multiple tilt angles for viewing comfort
- Wall Mountable: Yes, can be mounted on the wall for space-saving
Other Features:
- Headset Support: 3.5mm headset port and USB for Bluetooth or wireless headsets
- Display Customization: Customizable screen background and layout
- Language Support: Multi-language support for over 20 languages
- LED Indicators: Status LEDs for visual call and feature indicators
Environmental:
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Storage Temperature: -10°C to 50°C (14°F to 122°F)
- Operating Humidity: 10% to 90% relative humidity, non-condensing
- Storage Humidity: 10% to 90% relative humidity, non-condensing
Certifications:
- Compliance Standards:
- CE, FCC, RoHS, UL certified
Ideal Use Case:
The Yealink SIP-T43U is an ideal solution for businesses looking for a cost-effective, reliable, and feature-rich VoIP phone. Its wide range of capabilities, including up to 12 SIP accounts, customizable keys, HD voice quality, and integration with common SIP-based platforms, makes it suitable for small to medium-sized offices, customer service teams, and call centers.
Benefits:
- High-Definition Audio: Provides clear audio quality for a better calling experience.
- Flexible and Scalable: Can be easily integrated with a wide range of SIP-based PBX systems and services.
- Advanced Features: Includes customizable keys, multiple lines, and support for wireless headsets to enhance user experience.
- Security and Compatibility: Equipped with advanced security protocols and VLAN/QoS support for secure and efficient network operation.
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