YeaStar S50 Small Business IP-PBX Phone System

Contact us for a price
On backorder
Payment options
Our advantages

Choose or change any additional FXO/FXS/GSM-3G modules on the Module Add-on page. See module page for additional options.

Max. Call Capacity25 ProcessorA9 ARM quad-core

The YeaStar S50 IP-PBX Main Details

The S50 IP-PBX is an mid range PBX solution with expandable module design for small business. S50 is a compact and full-featured IP-PBX that comes in a 19’’ 1U rack-mountable chassis. The advanced module-based S50 is capable of supporting ISDN BRI, PSTN, and GSM connectivity as well as VoIP line communications for up to 50 users.

One of the great things about YeaStar systems is not only the modular mix and match hardware designs - but YeaStar is one of the only manufacturer who fully integrates Automatic Provisioning of select third party IP Phones (more details below).

Firmware upgrades are available for free for lifetime upgrades of your phone's system. This allows for both feature updates as well as the addition of new features to add to the functionality of your telecommunications, when new firmware is released. There are not license or subscriptions needed for firmware updates.

The YeaStar S-Series systems modular design allows you to create your own phone system package, based on Your needs, with FXO (Analog Extension ports), or FXS (Analog Telephone Line Ports). Each port set can be enabled and expanded by purchasing separate cards based on your specific needs!

YeaStar S50 configurable hardware

VoIP Trunk Channels come standard with 50 VoIP / SIP trunks available right out of the box. Use a mix of FXO and FXS ports as well as mobile connection as a back-up solution to standard analog or VoIP telephone lines, where redundancy for telephone service is needed.

Add up to 50 users with up to 25 concurrent calls at any time...

S50 Modular IP-PBX Phone port setupFlexible clustered upgrade modules allow you to increase user/extension and analog (FXO) telephone lines, as well as add PRI lines or GSM/Mobile service lines where analog or SIP telephone line service may not be available.

If you need to add two, four or up to 8 analog telephone lines, simply 4 - O2 Modules (FXO port card), and you're up and running in seconds with the upgrade options. Or, mix FXO ports (telephone line ports) with FXS ports (analog extension ports) with S2 Modules to create a split port use system for telephone lines and analog telephones.

Of course, if you're only going to use VoIP / SIP Trunking telephone service on the YeaStar S50 - you don't need to spend the extra on adding modules you won't need.

linkus yeastar mobile device pc appYeaStar S50 Unified PC & Mobile device communication

Communicate whether on the road, in a hotel, or out for lunch - ease of use and flexible!

Not only do you have access around the office, or at remote locations like home or satellite branches using cordless and desk top IP phones - the YeaStar Linkus Mobile and PC App allows you to connect anywhere, view colleagues' presence status and synchronize data!

Use one extension for yourself or other workers - and communicate across several devices.

The Linkus App also synchronizes call history and corporate directory information - AUTOMATICALLY.

linkus pc connectLinkUS Mobile Device App includes: HD VoIP Calls, Presence information, Company directory listing, Instant Messaging, Conferencing, SRTP Secure Media, Advanced call handling.

Check your voicemails and call in/out of the office main PBX System lines. Available for iOS and Android mobile devices.

LinkUS PC includes the mobile features and a few additional ones, such as: File sharing, CRM integration.


Third Party IP Phone Endpoint Integration

That's right - they integrate with other popular brand manufacturers' SIP endpoints - right out of the box. Third party device provisioning is available for these IP Phone brands available here at YeaLink, GrandStream, Snom, Panasonic, Mitel, Cisco, Alcatel, Fanvil, and more. Auto-provisioning is also available for YeaStar Gateways - allowing you to expand your Analog to SIP telephone line capacity with different YeaStar IP-PBX phone system supported models.


Brand Manufacturer:
YeaStar Canada
SKU - Product Code:
Equipment Use Type:
IP-PBX Phone System Main Box
Max. Call Capacity :
SIP Extension Capacity :
VoIP Trunk Capacity :
Analog (FXO) Phone Line Capacity :
Analog (FXS) Extension Ports :
Gigabit Network Ports:
1 WAN - 1 LAN
Expandable Storage Memory:
Yes - SD Card
A9 ARM quad-core
Internal Memory:
5000 minutes - expandable
Multi-Site Connect :
IVR - Auto Admins :
Multi-Company Capable :
Live Call Recording Server :
CRD (Call Detail Records) :
Multi-Language Support :
Supports SIP Video :
SIP Video Codecs :
H.264 - H.263 or H.263+
Security :
Yes - SRTP - TLS and HTTPS encyrption
Auto Configure SIP Endpoints :
Manual Configure SIP Endpoints :
Fax Functions - Fax to Email :

YeaStar IP-PBX Comparison Matrix (Yeastar-S-Series-VoIP-IPPBX-Datasheet_english.pdf, 591 Kb) [Download]