Performance and Power
Full-featured rack-mountable IP-PBX built for small business Win with superior UC capacity and next-level efficiency.
Simple to use and manage
Easy to use with plug-and-play, phone auto provisioning, and intuitive GUI.
Full-featured + Robust UC
Connect and collaborate any way, on any device with complete feature set.
Reduce IT & maintenance costs with highly-secure remote monitor and control.
Reliability over years
Free lifetime software upgrade plus high-end security to assure reliability over years.
Connect, communicate and collaborate the way you like
With S50 to work with Yeastar Linkus UC softphone and Linkus Cloud Service, experience the ultimate convenience of doing business anywhere, on any device.
Eliminate complexity and connect on any device anywhere with Linkus UC Softphone.
Voice, conferencing, messaging. Get all advanced features for smarter conversations.
Corporate Directory. Presence. File Sharing. It’s about the team-up.
Salesforce CRM, Microsoft Dynamics 365,Outlook Contacts, Google Contacts…
Powerful Remote Management
Benefit from a highly secure platform to monitor and manage your PBX system(s) remotely and centrally. Whether you are a phone system end user or a IT reseller, Yeastar Remote Management tool is here to free you from technical headaches and reduce IT & maintenance costs.
Flexible Modular Design
With Yeastar S-Series, all the telephony interfaces are modular and customizable, S50 support 4 onboard module slots to custom FXS, FXO, ISDN BRI, GSM/3G/4G.
Robust Feature Set Crafted for Your Business Needs
Complete Built-in Features
From basic call routing, IVR to advanced call conferencing and recording, Yeastar S-Series VoIP PBX provides you with all-inclusive features without extra licensing fees.
Extra Capacity with App Center
Independent from the main framework of the system, App Center allows you to add and manage Apps independently for extra functionality like hotel app, billing, call center integration, etc.
Rich API for Integration
Open immense opportunity with rich built-in API interfaces, which allow you to connect your phone system with third-party web applications or software to fulfill specific needs.
Supported IP Phones
Yeastar S-Series support auto provisioning with numerous SIP/IP phone brands and models.
4G LTE Solution
SIP over 4G LTE. Ideal for temporary locations, mobile offices, and more.
Branch Office Solution
Interconnect multisite with ease and benefit from free and seamless inter-office communications.
Call Center Integration
Support integration with QueueMetrics and Asternic Call Center to drive business success.
Boost business productivity with screen-pop upon calls and more more your CRM platform.
Streamline hotel operations with Hotel PMS Integration, Hotel App, and more functionalities.
Performance and Power
Easy to use, reliable, and feature-rich, S-Series is designed to help small and medium businesses make a giant leap in efficiency and cost savings. The innovative S-Series unleashes the power of unified communications, provides great flexibility with field-upgradable modular design, and allows you to connect to traditional lines, VoIP lines, and cellular networks. Perfectly future-proof, S-Series converges business-enhancing features with free software updates to grow with your business and assures reliability over the years.
Appreciate the Easy-to-use Solution
The S-Series features fast installation with comprehensive auto provisioning, advanced plug and play capability, together with an intuitive Metro UI driven by point-and-click configuration, from any location.
Your Choice of Technologies and Features
With a unique modular design, the S-Series will install into the most demanding of environments. You can also take advantage of advanced enterprise grade features with the fullest and most complete software versions.
Telephone System without Risk
S-Series is built with the future in mind, utilizing the latest technology advances, from Freescale industrial grade Quad Core processors, TI DSP voice processors, and long-life power units and lightning protection.
Play Safe and Expect Reliability
With advanced failover, security, monitoring and reporting capabilities as standard, combined with an internal firewall and with support for TLS and SRTP encryption, there has never been such a robust system.
Key Features and Benefits
- Linkus Unified Communications App for Desktop and Mobile.
- Built-in call recording capability.
- Control and manage customer-premises PBX easily and quickly with Remote Management.
- Connect multiple sites and remote users instantly.
- Powerful Apps (add-ons) include Linkus Server, Auto Provision, LDAP, Conference Panel, VPN
Server, Billing App, Hotel App, and more coming soon
- Control and manage customer-premises PBX easily and quickly with Remote Management
- Convenient integration with call center, PMS, and CRM
- Connect multiple sites and remote users instantly
- No hidden charges and extra licensing fees
- Low power consumption (1.8-59.1 watt)
- Automated Attendant (IVR)
- Attended Transfer
- Blind Transfer
- Call Back
- Call Detail Records (CDR)
- Call Forwarding
- Call Monitor
- Call Parking
- Call Pickup
- Call Recording
- Call Routing
- Call Waiting (FXS)
- Caller ID
- Custom Prompt
- Dial by Name
- Distinctive Ringtone
- Do Not Disturb (DND)
- Event Center
- Email to SMS/SMS to Email
- Fax to Email
- Linkus UC Softphone
- Mobility Extension
- Multi-language System Prompt
- Multi-language Web GUI
- Multi-site Interconnect
- Music on Hold
- One Touch Recording
- PIN List
- Phone Provisioning
- Real-time Status Monitor
- Remote Management
- Ring Group
- SIP Forking
- Speed Dial
- Time Condition
- User Portal
- User Permission
- Video Calls
|Users||20||20||50||100 (up to 200)||300 (up to 500)|
|Max Concurrent Calls||8||10||25||30 (up to 60)||60 (up to 120*)|
|Max FXS Ports||12||4||8||16||24|
|Max FXO/BRI Ports||4||4||8||16||24|
|Max GSM/3G/4G Ports||2||1||4||6||6|
|Max 4G Port (Data)||1||1||1||1||1|
|Max E1/T1/J1 Ports||–||–||–||2||3|
|VoIP Trunks 4 20 50 100 100||4||20||50||100||100|
|Protocol||SIP (RFC3261), IAX2|
|Transport Protocol||UDP, TCP, TLS, SRTP|
|Codec||G711 (alaw/ulaw), G722, G726, G729A, GSM, Speex, ADPCM, iLBC, H263, H263P, H264, MPEG4|
|DTMF||In-band, RFC4733, RFC2833, SIP INFO|
|Ethernet Interfaces||2 × 10/100 Mbps||2 × 10/100/1000 Mbps|
|IP Services||Static IP, DHCP, VPN, Firewall, VLAN, DDNS, PPPoE, QoS, Static NAT, STUN|
|Voicemail||5000 min (expandable)||10000 min (expandable)|
|App Center||Linkus Mobile Client, Phone Provisioning, LDAP Server, Conference Panel, VPN Server, Billing App, Hotel App, charutile h+ Integration, Queue Metrics Integration|
|External Storage||TF Card||TF Card||SD Card||SD Card||SD Card & 2.5’’ SATA HDD|
|Power||DC 12V 3.33A||DC 12V 1A||AC 100-240V
50/60HZ 0.6A max
|AC 100-240V 50/60HZ 1.8A max
|Size (L x W x H) (cm)||29 x 18 x 3.3||16 x 16 x 3||34 x 21 x 4.4||44 x 25.2 x 4.4||44 x 25.2 x 4.4|
|Weight||0.68 kg||0.3 kg||1.48 kg||2.5 kg||2.6 kg|
|Power Consumption||9.0-25.6W||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||1U Rack-mount|