Yeastar S50 IP PBX – 50 Users with 4 FXO Ports

Key Features:

• 50 Users: Designed for small and medium enterprises.

• 25 Concurrent Calls: Handles multiple simultaneous voice sessions efficiently.

• Modular Expansion: Four onboard module slots let you configure analog (FXO/FXS), BRI, and cellular interfaces.

• Up to 8 Analog/FXO Ports: Supports up to 8 analog/FXO ports (e.g., four FXO ports via two O2 modules).

• 50 SIP Trunks: Connect with VoIP carriers for SIP calling.

• Advanced Call Handling: IVR (auto attendant), call recording, queues, paging/intercom, follow‑me, music on hold, and more.

• Unified Communications: Integrates with Linkus UC softphone for desktop and mobile.

• Security & Network: Built‑in firewall, VPN, VLAN, QoS, TLS/SRTP encryption, and more.

• Fax & Messaging: Supports T.38 fax‑over‑IP, voicemail to email, SMS to email.

• Remote Management: Configure and monitor from anywhere via web GUI.

• 1U Rack Mount: Robust industrial design suitable for office rack installation.

Hardware & Technical Specs:

• User Capacity: 50 users.

• Concurrent Calls: 25.

• VoIP Trunks: 50 SIP trunks.

• Modular Slots: 4 onboard slots for telephony modules (FXO/FXS/BRI/cellular).

• Maximum Analog/FXO/BRI: Up to 8 analog/FXO ports with modules.

• Cellular Support: Up to 4 GSM/3G/4G channels with modules.

• Networking: Dual Gigabit Ethernet (LAN & WAN).

• Protocols: SIP (RFC3261), IAX2; SIP transport including UDP, TCP, TLS, SRTP.

• Codecs: G.711 (a/u), G.722, G.726, G.729A, GSM, Speex, ADPCM, iLBC; video codecs supported.

• Fax: T.38 fax‑over‑IP support.

• Voicemail: Up to ~5000 minutes (expandable).

• Power: AC 100–240 V, 50/60 Hz.

• Mounting: 1U rack mount.

• Operating Temp: 0 °C–40 °C; humidity 10–90% non‑condensing.