IP Phone SIP-T790GN – Advanced Business IP Phone

1. Key Features

✅ 2.4-inch Color LCD Display for clear and vibrant visuals
✅ 4 SIP Lines & Paperless Electronic Page Turning for efficient call handling
✅ Encrypted Calling (OpenVPN/TLS/SRTP) for secure communication
✅ Optimized Noise Reduction & USB Recording for enhanced audio quality
✅ High-Fidelity HD Sound Quality – HD Handset & HD Hands-Free Mode
✅ Optional WiFi Connectivity for flexible networking
✅ USB 2.0 Port for USB Recording & WiFi Connection
✅ Advanced Remote Address Book Management

2. Hardware Specifications

🖥️ Display: 2.4-inch Color LCD
🔌 Network Interface: 2 × 10/100 adaptive Ethernet ports (PoE optional)
🎧 Headset Jack: RJ9 Interface for external headset
💾 USB Interface: USB 2.0 Port for storage & WiFi connectivity
⚡ Power Supply: AC 100-240V, Output: DC 5V

3. Software Specifications

📡 Operating System: Linux-based firmware
🌍 Language Support: 17 languages (English, Chinese, Spanish, Russian, Arabic, etc.)
🎙 Voice Quality: High-definition audio for handset & hands-free mode

📊 Voice Codec Support:
✅ G.711A/u, G.722, G.723 (high/low), G.729 A/B
✅ DTMF Signaling (SIP INFO, DTMF Relay, RFC2833)

🌐 Network Protocols:
✔ SIP 1.0 (RFC2543) & SIP 2.0 (RFC3261)
✔ IEEE 802.3/802.3u, UDP/TCP/IP, RTP, RTCP, SRTP
✔ Security & VPN: OpenVPN, PPTP, L2TP
✔ Others: DNS, DHCP, PPPoE, Telnet, FTP, TFTP, HTTP, HTTPS

📞 Advanced Telephone Functions:
✅ Call Hold, Mute, Call Transfer (Unconditional, No Answer, Busy Transfer)
✅ Multi-Party Conference & Call Waiting
✅ Personalized Ringtones & Auto Answer
✅ Phonebook: Stores 500 phone numbers, 1000 call records, 1200 total records
✅ Blacklist support (optional)

🔔 Ringtone Selection:
🎵 10 Built-in ringtones (Factory customization available)

🔒 Encryption & Security:
✅ AES Software Encryption & Hardware Encryption Chip

🕒 Time Management:
✅ Auto Time Sync via SNTP/SIP Server or manual setting

🌍 Network Management:
✅ TR069, SNMP – Remote device management
✅ Auto Configuration: TFTP, HTTP, HTTPS, PnP

Why Choose the SIP-T790GN?

✅ Enterprise-Grade VoIP Phone with advanced features
✅ Crystal Clear HD Audio – For both handset & speakerphone
✅ Flexible & Secure Communication – Supports encryption & VPN
✅ Efficient Management – TR069, SNMP & Auto-Provisioning
✅ User-Friendly Interface – Backlit Color LCD & intuitive controls

📞 Upgrade Your Business Communication with the SIP-T790GN!