Yeastar IP PBX System



Yeastar S-Series VoIP PBX



Looking for auto-provisioning, LDAPs, conference panels, VPN servers, and more? Yeastar S-Series has you covered on that front as well.

In addition to being extremely flexible, each model has built-in call recording capabilities and integration with a powerful set of apps. Yeastar App Center lets users manage and add the features they need. There are apps for billing, hotels, auto-provisioning, conferencing and more.

Yeastar S-Series is comprised of the S20, S5, S100, and S300 ? all of which include access to:

  • Automated Attendant (IVR)
  • CRM Integration
  • Call Detail Records (CDR)
  • Unified Messaging
  • Call Routing
  • Mobility Extension
  • Video Calls

The higher you go in the S-Series, you gain more access to extras like additional ports, increased concurrent calls, number of users, additional analog ports, BRI ports, GSM/3G ports, E1/T1/J1 ports, thanks to its flexible modular design.

  • The S20 supports up to 20 users, allows up to ten concurrent calls, and has four analog ports
  • Its S50 model supports 50 users, 25 concurrent calls, and has eight analog ports
  • Yeastar S100 model enables up to 200 users, 60 concurrent calls, and has 16 analog ports
  • The last in its series, the S300 allows up to 500 users, 120 concurrent calls, and has 25 analog ports

Note: Each of Yeastar VoIP PBX systems includes firewall protection, hot standby, and T.38 fax abilities.

Advantages of Yeastar S-Series VoIP PBX

Yeastar S-Series is relatively easy to use and has insanely fast installation, accompanied by auto-provisioning and advanced plug-and-play capabilities. Paired with a clutter-free Metro UI ? simple point-and-click configuration can be done from any location.

Highly-customizable: Users can also select which technologies and features they have access to, and modules assist in the customization process. Customers are even equipped with Freescale industrial grade Quad Core processors and TI DSP voice processors.

Reliable: The S-Series is reliable. It has advanced failover, security, monitoring, and reporting functions, which come standard. There is also an internal firewall with support for TLS and SRTP encryption.

Storage and USB: Regarding storage, there is the option for external storage in the form of TF and SD Cards. The S100 and S300 both have USB ports.

Remote management: Yeastar S-Series also enables remote management through a centralized platform for easy management and configuration of customer-premises PBXs. This puts the power in the hands of service providers and resellers ? allowing them to take control of critical situations while reducing travel.

Not only can you manage remotely, but all remote connections are HTTPS secure and enable you to configure customer PBXs on a technical support level-two.

Target Market and Availability

With its latest offering, the S-Series, Yeastar is targeting small-to-medium-sized business looking to make strides toward greater efficiency. It is also important to note that this since the S-Series is customizable, it can be scaled for any an enterprise of any size.

Pricing structure and how to buy

Yeastar offers transparent pricing for its S-Series PBX systems, as there are no hidden charges or licensing fees involved in the buying process.

You can purchase an S-Series system through certified Yeastar partners, and the pricing will reflect the volume of customers your business has. Both resellers and service providers can add and remove the features they need for an optimal CX.

Final thoughts

Yeastar also has a Cloud-based telephony platform called Yeastar Management Plane. It is a simple UCaaS solution, which gives resellers and service providers additional flexibility. Similarly, the S-Series catered toward those who want to unify communications efforts in one of the simplest and least expensive ways possible.

Overall, the S-Series, depending on your needs, is highly recommended. Before you choose a system, consider your business size and if you want to have the option to upscale at any time. A UC system like Yeastar S-Series could be the saving grace for truly unifying your business comms at an affordable rate while reducing setup costs.

Because of its access to integrations like Salesforce, a robust mobile application, and ability to tap the power of your entire office setup from the comfort of your own device ? Yeastar S-Series has the potential to empower a whole new culture of BYOD.

Yearstar is, furthermore, enabling real-time communication through its mobile application ? Linkus UC Softphone, which can be accessed through any iOS, Mac, Android, or Windows device.

It is also worth mentioning the S412, Yeastar pre-configured system includes eight FXS ports and is customizable with four module slots. This includes two module slots for internal extension and two for external lines.

The Yeastar S-Series is designed to help you grow your business by providing plenty of business-enhancing features and functions. Learn more about the business-enhancing features.

  • App Center
  • AutoCLIP
  • Auto Provision IP Phones
  • Automated Attendant (IVR)
  • Blacklist/Whitelist
  • Billing App
  • Call Back
  • Call Detail Records (CDR)
  • Call Monitor
  • Call Recording
  • Call Routing
  • Call Transfer
  • Conference
  • Distinctive Ringtone
  • Emergency Number
  • Event Center
  • Email to SMS/SMS to Email
  • Fax to Email
  • Find Me/Follow Me
  • Hot Standby
  • Import/Export Extensions
  • LDAP Server APP
  • Mobility Extension
  • Music on Hold
  • Queue
  • Ring Group
  • Remote Management
  • SIP Forking
  • SLA
  • Speed Dial
  • Time Condition
  • User Portal
  • User Privileges
  • Video Calls
  • Voicemail
  • Voicemail to Email
  • VPN Server App
  • Learn more about features


Yeastar's offering in the IP-PBX market is the S-Series. The S-Series has been designed to be easy to install, simple to manage and built to perform. Installation is streamlined with auto-configuration, auto detect and plug and play capabilities.

The S-Series is designed to cover the market from 2o to 500 extensions with 4 models, the S20, S50, S100 and S300. All are of a modular design that come fully licensed out of the box and are SIP native for both lines and extensions.
If legacy analogue or digital lines or analogue extensions are required then additional modules can be installed. SIM cards can also be accommodated to allow calls to be made and received over the mobile network.
The Linkus mobile client is available for Apple iOS and Android to allow you mobile to function as an extension on the phone system.

The Yeastar S-Series offers all the features you would expect in a modern phone system along with a couple that you wouldn't expect - hot standby, a comprehensive hotel/motel package and a billing application for business who on-bill their time to clients.

All models right down to the entry-level S20 support hot standby for critical installations. Two S-Series are installed together and linked. One performs the day to day processing but if it fails then the hot standby takes over. The phones and SIP trunk(s) will reregister and the users may not notice anything has happened. Any legacy connections will have to be manually swapped.

Self provisioning of the phones goes one step further with support of common brands such as Yealink, Snom, Cisco, Grandstream, Polycom and Fanvil. Other brands such as Gigabit cordless can be manually provisioned in seconds.
Listed below are the capacities of each model and with the newly introduced Yeastar K2 you now have an upgrade path to 2000 extensions if you outgrow a fully expanded S300 or would prefer to have your telephony in a server-based environment.


  S20 S50 S100 S300
Hardware Specifications        
Size(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 supply DC 12V 1A AC 100-240V 50/60HZ 0.6 A max AC 100-240V 50/60HZ 1.8A max AC 100-240V 50/60HZ 1.8A max
Power Consumption 1.8-10.6 W 2.1-18.5 W 5.5-41.2 W 6.2-59.1 W
Analogue extension Max. 4 Max. 8 Max. 16 Max. 24
BRI channels Max. 4 Max. 8 Max. 16 Max. 24
GSM/UMTS Max. 1 Max. 4 Max.   6 Max.    6
PRI circuits 0 0 Max.   2 Max.   3
Console Port 0 0 1 1
TF Card (Up to 256 GB) 1 0 0 0
SD Card (Up to 256 GB) 0 1 1 1
USB 2.0 (Up to 2TB) 0 0 1 1
Hard Disk (Up to 2TB) 0 0 0 1
WAN 1 (10/100Mbps) 1 (10/100/1000 Mbps) 1 (10/100/1000 Mbps) 1 (10/100/1000 Mbps)
LAN 1 (10/100Mbps) 1 (10/100/1000 Mbps) 1 (10/100/1000 Mbps) 1 (10/100/1000 Mbps)
Software Limitation        
Users 20 50 100-200 300-400-500
Extension Group 10 10 10 10
Extension digit length 2-7 2-7 2-7 2-7
Concurrent Calls 10 25 30-60 60-90-120
(max. concurrent calls is 90 with auto call recording)
Auto Recording 10 25 30-60 60-90
Trunks 20 50 100 100
Outbound Routes 32 64 128 128
Inbound Routes 64 128 256 256
Time Condition 10 10 10 10
Holiday 10 10 10 10
Voicemail 5000 min(expandable) 5000 min(expandable) 10000 min(expandable) 10000 min(expandable)
Auto attendant 32 32 64 128
Ring Group 16 16 16 32
Members per Ring Group 20 25 30-60 60-90-120
Call queue 16 16 16 32
Members per Call queue 20 25 30-60 60-90-120
Conference Room 16 16 16 32
Max. Members per Conf. Room 10 25 30-60 60-90-120
Pickup Group 10 25 64 64
Members per Pickup Group Unlimited Unlimited Unlimited Unlimited
Speed Dial Number 512 512 512 512
Call back 128 128 128 256
DISA 16 16 16 32
Blacklist 128 128 128 256
Members per blacklist 50 50 50 50
Whitelist 128 128 128 256
Members per whitelist 50 50 50 50
PIN list 16 16 16 32
PIN Numbers per PIN list 20 50 100-200 300-400-500
Paging Group 16 16 16 32
Members per Paging Group 10 25 30-60 60-90-120
MOH Playlist 16 16 16 32
Files per MOH Playlist 8 8 8 8
Custom Prompts 32 32 32 64
Notification Contacts 4 4 4 8
User Permission 20 50 100-200 300-400-500
Firewall Rules 512 512 512 512
Firewall Blacklist 2000 2000 2000 2000
Certificates 8 8 8 8
Database Grant 8 8 8 8
LDAP LIST 1 2 4 8
Contacts per LDAP List 1000 1000 1000 1000
Backup and Restore 8 8 8 8
IAX2 yes yes yes yes
T.38 yes yes yes yes
SRTP yes yes yes yes
Network Drive 2 2 4 4
Hot standby yes yes yes yes
VPN Server Max Clients 20 50 100/200 300/400/500
VPN Server Max Online Simultaneously 20 50 100/200 300/400/500



Solution for Hospitality Industry


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