Yeastar S50 VoIP PBX

8-Port IP-PBX Support 50 users and 25 Concurrent Calls LAN/WAN: 1 × 10/100/1000 Mbps Voicemail: 5000 min (expandable) VoIP Trucks: 50 Protocol: SIP (RFC3261), IAX2 External Storage: SD Card Built-in call recording capability Includes: (1) Ethernet Cable (1) Power Cord (2) Rack Mounting Kits (1) Grounding Stud and Nut (4) Rubber Feet (1) Warranty Card (1) Quick Start Guide