Yeastar IP PBX S50
The Yeastar S50 is a robust, rack-mountable VoIP PBX designed for small to medium-sized businesses. It supports up to 50 users and 25 concurrent calls, offering full PBX features including unified communications, modular expansion, and remote management all without additional licensing fees.
| Brand: Yeastar | 
Key Features:
- Supports up to 50 users
 - Handles 25 simultaneous calls
 - Allows 50 SIP trunks
 - 4 modular slots for FXS, FXO, BRI, or GSM/3G/4G modules
 - Comes pre-equipped with 5,000 minutes of voicemail storage (expandable)
 - Built-in call recording
 - Auto-attendant (IVR), call queuing, call forwarding
 - Paging/intercom and music-on-hold
 - Fax to email, email-to-SMS/SMS-to-email support
 - Linkus UC client (desktop and mobile) for unified communications
 - CRM integrations: Salesforce, HubSpot, Odoo, Zoho CRM, Outlook, Google Contacts
 - SIP (RFC3261) and IAX2 protocol support
 - TLS/SRTP encryption, HTTPS, with built-in firewall, VPN, DDNS, and QoS
 - Auto-provisioning for IP phones (Cisco, Yealink, Panasonic, etc.)
 - Rich API & App Center for add-ons like LDAP, conferencing, call-center tools
 - Web-based GUI for intuitive remote management
 - Low power consumption (2.1–18.5 W), rack-mountable 1U design
 
Communication & Unified Collaboration:
From standard telephony to unified communications, the S50 delivers auto-attendant, IVR, call queuing, and paging/intercom. It integrates seamlessly with Linkus UC for desktop/mobile voice, messaging, presence, and CRM systems like Salesforce and HubSpot empowering teams to connect however they like.
Scalability, Security & Management:
The S50’s modular design supports analog, ISDN, and cellular interfaces via four add-on slots. It includes strong security protection—TLS/SRTP, firewall, VPN and supports remote, web-based monitoring and auto-provisioning. Powered by an industrial quad-core CPU, it ensures performance and reliability with minimal power usage and no ongoing licensing costs.

