Linkus Cloud Service

Enable Hassle-free Remote Working Environment in Minutes
For Yeastar S-Series VoIP PBX and K2 IP-PBX Users.

Linkus Cloud Service for Remote Working

Break Down the Barrier to
Remote Working

Yeastar Linkus Cloud Service is a valued-added service designed to make remote working easier and more accessible for Yeastar S-Series VoIP PBX and K2 IP-PBX users. Freeing you from IT headaches, it avoids the necessity of port forwarding when using Linkus outside of the company and offers secure, uninterrupted Linkus remote connection in no time, so your teams can work and collaborate with clear, reliable calling and secure unified communications, irrespective of locations.

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Go Extra Mile on
Linkus Unified Communications

Maximize productivity with a full spectrum of extension and UC options readily accessible on Linkus Unified Communications App – in every location and from any devices. Powerful features like One-touch dialing, Contacts Directory, Instant Messaging, File sharing, Presence and CRM Integrations make every call and connection a snap.

Linkus Cloud Service

Stay Connected Anywhere

With 90-Days FREE Subscription

Amid COVID-19 outbreak, we’d like to make a contribution to your remote working with 90-Days Free Subscription* for Linkus Cloud Service.

If you are using S-Series VoIP PBX but haven’t enabled the service, simply enable it now to enjoy the complimentary offer.If you are LCS existing subscribers, apply here to extend your subscription by 90 days. *This offer is valid until Jun 30,2020 and is Not applicable to K2 IP-PBX.More Solutions to Help

Stay Connected Anywhere

Instant Remote Connection

Securer Remote Communications

Better Call Quality

Natural UC Experience


Instant Remote Connection

Get your Linkus Server up and running for remote working within clicks and free your PBX administrator from tricky server and complicated network settings.


Securer Remote Communications

Exposing ports to the public internet now not a necessity for using Linkus softphone outside of the company network. Linkus Cloud Service secure your remote communications with industrial-grade tunneling and encryption technology.


Better Call Quality

NAT issue is now a thing of the past. Linkus Cloud Service stops NAT issues from happening hence improves your call quality and user experience.


Natural UC Experience

Enjoy easier and more consolidated collaboration with Instant Messaging and file sharing feature enabled on your Linkus. A real-time sharing of ideas and documents anywhere is as easy as pie.

Trusted by Customers Worldwide

Thanks for Linkus Cloud Service! It solves so many problems. Now you can have teleworker extensions without exposing your IP PBX to the internet, high-quality calls, secure and reliability. It also solves the double or triple NAT from my home internet provider, usually blocking the SIP calls. With Linkus Cloud Service you can forget about these problems. Also, the Chat, presence, and on-app audio conferences are great and provide much more richness to our PBX as a Unified communication platform.

Miguel Rabi

Product Manager at Optical Networks, Italy

Rembe is a German based safety products company with its US operations in South Carolina, USA. The company was very impressed with the Linkus demo and immediately contracted for a new Yeastar telephone system with Linkus Cloud Service. Rembe has a bunch of their staff traveling back and forth to Germany and they were most impressed with being able to use Linkus to conduct business while on the road, hotel rooms and being in either country.

Eric Martin

Managing Partner at IP3 Solutions, LLC, USA.

As a telecom provider, Linkus has been a great “go to” during COVID enabling some of our clients to function as if they were at the office. It has also saved us costs in cellular services. By utilizing Linkus Cloud Service within our own branches, our technicians and sales can now communicate with each other and clients – on any given day, from anywhere in the country. I use the service daily and enjoy this feature thoroughly.

Morne du Plessis

Technical Manager at MFP Office Automation Group, South Africa

Yeastar Linkus Cloud Service has been a game changer for us and our telephony clients. Now Yeastar is our most popular system being sold, and with the ability to offer work from home by simply sending out a Linkus invitation, has been amazing. We recently installed a client with only 5 phones, and over 40 Linkus mobile and desktop users. We are now able to offer a premise-based PBX with the convenience of a cloud mobile App for desktop, phones and tablets. I endorse and highly recommend the Linkus Cloud Service as the best Stayed Connect & Work Remotely App on the market.

Berry Sweeting

Telephony Consultant at Managing Teleport One (Bahamas) Ltd

With Yeastar PBX and Linkus Cloud Service, we are able to provide our customers with the best working experience by giving them the opportunity to stay connected with their customers even during lockdown. With the Linkus apps on the mobile phones, laptops, or desktops, we provide users with a mobile extension without having any need to perform operations on our customer’s network.

Graziano Galantino

Technical Assistance at PLUG AND PLAY INFORMATICA SRL, Italy

Frequently Asked Questions

What Yeastar products can be used with Linkus Cloud Service?

Linkus Cloud Service is designed only for Yeastar premised-based PBX: S-Series VoIP PBX and K2 Large Capacity IP-PBX. Yeastar Cloud PBX does not need Linkus Cloud Service.

When do I need Linkus Cloud Service?

If you are using S-Series VoIP PBX or K2 Large Capacity IP-PBX, Linkus Cloud Service will provide a better Linkus experience whether you are a PBX administrator or extension user. If you match one or more of the following conditions, you should definitely give Linkus Cloud Service a try!

1) You need a softphone that is easy to configure;
2) You need a softphone that can be used outside of the company network;
3) You need unified communications features with your softphone

Yeastar Cloud PBX already offers the full Linkus experience thanks to the cloud technology. So if you are using Yeastar Cloud PBX, you will never need Linkus Cloud Service.

Do I have a Cloud PBX if I purchase Linkus Cloud Service?

No. Only S-Series VoIP PBX and K2 Large Capacity IP-PBX need Linkus Cloud Service, and it does not make your PBX a Cloud PBX.

How secure is Linkus Cloud Service?

Linkus Cloud Service is an application-level tunneling service; it only handles SIP data and the custom protocol data of Linkus and does not touch the PBX data, which means no party can access the PBX through the tunneling server.

All transmission between the PBX and the tunneling server is encrypted. And each PBX will have its own encryption key. Even if the tunneling server is brought down by a hacker, there is no way to replace the tunneling service and get original transmission data since the hacker does not know the encryption method.

The tunneling server is secure and has multiple protection measures. Our operation team stands by to handle any emergency in no time.

Is there a free trial available?

Yes! We provide 30-day free trial for Linkus Cloud Service. You can log in your S-Series VoIP PBX or K2 Large Capacity IP-PBX and go to “Linkus”. Under the “Linkus Server Settings” tab, click the “Enable Linkus Cloud Service” button to have a try.

Where can I download Linkus?

Linkus for Windows, Mac, iPhone, and Android can be downloaded from here.

How can I purchase Linkus Cloud Service?

Log in your S-Series VoIP PBX or K2 Large Capacity IP-PBX and to go “Linkus”, click the “Buy Service” button to purchase Linkus Cloud Service. Or you can click this link to purchase directly; in this case, you will need to enter your PBX’s serial number manually.

Which payment methods are accepted?

We accept payment by PayPal, by credit card (VISA / MasterCard / AMERICAN EXPRESS / Discover Card), and by offline payment (with payment instruction via email).

Pricing and Payment

Select Your Yeastar PBX Model
PBX Model:

Annual Subscription Price:

$99 USD

Payment Methods:

Paypal Paypal Interface
Time Limited Offer

You are a Yeastar Certifed Partner?

Get your Special Discount at Yeastar Partner Portal.