The Yeastar S50 is the workhorse modular IP PBX for growing businesses, supporting up to 50 users and 25 concurrent calls. It takes the same flexible expansion module bus as the S20 but with more capacity, more ports and Hot Standby for high availability.
Deploy it on-premise in a small server room or rack — pair it with Fanvil X-series desk phones, Linkus mobile clients and a SIP trunk to give your team a fully unified communications platform without recurring license fees.
Key Features
Scales to 50 users / 25 concurrent calls with all features included
Hot Standby failover for mission-critical comms
Mix and match analog, GSM, 4G, ISDN modules
Built-in call centre features — queues, recordings, wallboards
The S50 scales up to 50 users and 25 simultaneous calls (vs 20/10 on S20), has more module slots, and supports Hot Standby failover. Same feature set otherwise.
Related Products
IP PBX SystemsENTERPRISE
Yeastar S20 IP PBX
Yeastar
•Up to 20 users · 10 concurrent calls
•Modular slots for FXS / FXO / GSM / BRI ports
•Plug-and-play extension provisioning
Product Details
Nationwide delivery
eTIMS receipts
Typical Deployments
SMEs of 20–50 staff with mixed VoIP and analog lines
Schools, churches and clinics needing IVR + voicemail
Multi-branch retail with central PBX and remote extensions
Small call centres with up to 25 simultaneous calls
