S-Series VoIP PBX

Control and update your phone system with intuitive and graphical UI and point-and-click configuration using S-Series online Configuration Panel. Everything can be managed easily from any Internet-enabled device. Coordinated with S-Series VoIP PBX, Linkus Mobile Client makes your Android or iOS mobile phone an office extension and links you and your colleagues and customers anywhere anytime.

Fast Installations
Save time with streamlined installation and maintenance tasks using our advanced auto-configuration, auto-detect and plug and play capabilities.

Easy Configuration
Control and update your phone system with intuitive and graphical UI and point-and-click configuration using S-Series online Configuration Panel. Everything can be managed easily from any Internet-enabled device.

S-Series Models
Small business, home office, and mid-sized business will find a model that fits their business needs.
Specifications S20 S50 S100 S300
Users 20 50 100 (up to 200) 300 (up to 500)
Max Concurrent Calls 10 25 30 (up to 60) 60 (up to 120)
Max FXS/FXO Ports 4 8 16 24
Max BRI Ports 4 8 16 24
Max GSM/3G Channel 1 4 6 6
Max E1/T1/PRI Ports - - 2 3
LAN 1 × 10/100Mbps 1 × 10/100/1000Mbps
WAN 1 × 10/100Mbps 1 × 10/100/1000Mbps
Power DC 12V 1A AC 100-240V 50/60HZ 0.6A max AC 100-240V 50/60HZ 1.8A max
Dimensions (L x W x H) (mm) 160 x 160 x 30 340 x 210 x 44 440 x 252 x 44 440 x 252 x 44
Weight 0.3 kg 1.48 kg 2.5 kg 2.6 kg
Power Consumption 1.8-10.6 W 2.1-18.5 W 5.5-41.2 W 6.2-59.1 W
Environment Operation Range: 0°C to 40°C, 32°F to 104°F; Storage Range: -20°C to 65°C, -4°F to 149°F; Humidity: 10-90% non-condensing
Mounting Desktop & Wall-mount Rack-mount

Linkus Mobile Client

Stay Connected and Work Anywhere
Linkus integrates iOS & Android mobile phones with Yeastar S-Series VoIP PBX and enhances efficiency with consistent in-office experience. Never miss a call when working away from the office. And reduce mobile voice charges with VoIP phone calls made through the company PBX.

Bring Your Extension with You
Your office extension follows you when you are on the go. Mobile workers will benefit from one number reach which keeps their mobile numbers private and have instant access to enterprise and personal contacts.



Enhancing VoIP Communication with CallKit
Linkus calls will work just like standard phone calls thanks to CallKit support on iOS 10. Instead of a basic alert banner, your phone will now present the standard call control UI of iOS. Your VoIP calls now have higher priority and fewer interruptions.