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.

User ManualGet It Now

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.

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.