One Platform – All Communications
Experience the ultimate convenience of doing business anywhere, on any device with S-Series VoIP PBX to work with Yeastar Linkus UC softphone and Linkus Cloud Service. Gain the advantage over your competition by combining voice, instant messaging, conferencing, presence, and more…all from one single platform.
- All office extension feature
Click/touch to make, receive, transfer or record a call and check voicemails and recordings from anywhere.
- Instant messaging & file sharing
Text anyone from your company directory and share file in real-time with ease. Powered by Linkus Cloud Service.
- CRM integration
Screen-pop upon calls and more from your Outlook Contacts, Google Contacts, Salesforce CRM and Microsoft Dynamics 365.
- Presence
See who is available, busy or offline immediately and intuitively with colored status indicator.
- One number on all devices
Maintain a single number across devices with Linkus installed on your computer, iPhone or Android phones.
All Features are built in
Unparalleled Ease of Use and Management
With an intuitive browser-based interface and a robust set of management tools, productivity soars as you focus on your business, not your phone system
Scalable Modular Design
Flexible combination of telephony interfaces & Easy future expansion.
- Telephony Modules
FXS extensions module, FXO module,PSTN fallback module, BRI module,and GSM/3G/4G module. - Expansion Boards
Supports 4 modules in one EX08 Expansion Board Supports 1 E1/T1/PRI port in one EX30 Expansion Board. - System Capacity
Expand SIP users and concurrent calls when your business grows with DSP Module.
Excellent Interoperability
Use Your Existing IP Phones, SIP Trunk…all at your choice
- Easily integrate IP phones, hotel phones, SIP paging systems, door phones, and any SIP compliant endpoints, and systems.
- Proven interoperability with worldwide SIP/PSTN/ISDN trunks; certified with 80+ SIP trunk providers.
- Work seamlessly with legacy PBX, software-based PBX, or other servers to preserve the existing equipment and capitalize on the new technology
- Quickly auto provision IP phones from Yealink, Fanvil, Cisco, Snom, Polycom, Gigaset, Grandstream, Htek etc.
Powerful Remote Management
Benefit from a our highly secure remote monitoring platform where we are able to monitor and manage your PBX system remotely and centrally. This will free you from technical headaches and reduce IT & maintenance costs.
Which S-Series PBX is right for you?
S20 | S50 | S100 | S300 | |
Features |  |  |  |  |
Users | 20 | 50 | Up to 200 | Up to 500 |
Concurrent Calls | 10 | 25 | Up to 60 | Up to 120 |
Max FXS Ports | 4 | 8 | 16 | 24 |
Max FXO Ports | 4 | 8 | 16 | 24 |
Max Cellular Ports | 1 | 4 | 6 | 6 |
Max E1 | - | - | 2 | 3 |
VoIP Trunks | 20 | 50 | 100 | 100 |