FXS Ports
• 8 × RJ11 Analog Telephone Ports with Lifeline capability.

FXO Ports
• 8 × RJ11 PSTN Line Ports with Lifeline capability.

Network Interfaces
• Three self-adaptive Gigabit Ethernet ports with PoE+ support.

Peripheral Ports
• 2 × USB 3.0 Ports.
• 1 × SD Card Interface.

LED Indicators
• Power 1/2, FXS, FXO, LAN, WAN & Heartbeat LEDs.

Display
• 128 × 32 Dot Matrix Graphic LCD with DOWN & OK buttons.

Voice-over-Packet Capabilities
• LEC with NLP, 128ms Echo Cancellation, Dynamic Jitter Buffer, NetEQ, FEC 2.0 and up to 50% packet loss resilience.

Voice & Fax Codecs
• Supports Opus, G.711 A/U, G.722, G.722.1, G.722.1C, G.723.1, G.726-32, G.729A/B, iLBC, GSM and T.38.

Video Codecs
• H.265, H.264, H.263, H.263+ and VP8.

Telephony Platform
• Based on Asterisk® Version 16.

Security
• Supports SRTP, TLS, HTTPS, SSH, 802.1X and ZRTP encryption.

Power Supply
• Input: 100–240VAC, 50/60Hz.
• Output: DC 12V, 2A.

Dimensions
• 485 × 187.2 × 46.2 mm.

Weight
• 2550 g.

Installation
• Desktop & Rack Mount.

Capacity
• Supports up to 3,000 Users.
• Up to 450 Concurrent Calls.
• Up to 300 Concurrent SRTP Calls.

Meeting Capacity
• Unlimited Meeting Rooms.
• Up to 25 Public Meeting Rooms.
• Up to 300 Participants.
• Up to 9 Video Feeds per Room.

Call Features
• Call Forward, Call Transfer, Call Waiting, IVR, DID/DOD, Call Queue, BLF, Voicemail, Video Conference, Fax to Email, Email to Fax, Follow Me, Emergency Calling and more.

Management
• Zero-touch provisioning and centralized management through Grandstream Device Management System (GDMS).

Compliance
• FCC, CE, IC, RCM and UL 62368-1 Certified.