Linkus LCS Pro for Yeastar s20

What is Linkus LCS Pro?

Linkus Cloud Service Pro (LCS Pro) is an add‑on for the Yeastar S‑Series PBX (like the S20). It lets users access the Linkus softphone and remote SIP devices without needing port forwarding. This makes remote work easier and more secure.

Why Use LCS Pro?

1. Easy remote access
   You can use Linkus on mobile or desktop anywhere, even outside your office network. It sets up a secure tunnel automatically.

2. Built‑in FQDN
   You get a dedicated PBX domain name (e.g. yourPBX.yeastar.com). No need to buy or manage your own domain.

3. Remote SIP device support
   You can register remote phones, gateways, or branch office PBXs directly to your S20 via the secure tunnel—no complex network setup needed.

4. Improved security
   LCS Pro uses encrypted connections and lets you restrict remote access by IP and extension.

What You Get in LCS Pro

• Firstly, Everything in the standard LCS service (voice, chat, file sharing via Linkus clients)

• Secondly, A dedicated PBX domain name

• Thirdly, Remote SIP device registration with no port forwarding

• Lastly, Secure access controls

Compatibility and Requirements

• You must use a Yeastar S‑Series PBX (e.g., S20) with the right firmware:

  • S20 V2: firmware 30.15.0.100+

  • S‑Series V4: firmware 65.16.0.8+

  • S50i: firmware 78.16.0.8+

• Linkus Server app must be version 2.10.15 or later (or 65.0.15+ for V4 series)

If you run older firmware, upgrade the PBX before activating LCS Pro.

How to Get Started

1. Check firmware
   Update your S20 to the required firmware version.

2. Go to Linkus menu
   Log into your S20 PBX admin portal, open the Linkus section, then click “Linkus Cloud Service Pro.”

3. Sign up or trial
   You can try LCS Pro free for 30 days. After that, you’ll need a subscription or license.

4. Activate
   After enabling LCS Pro, the PBX will manage everything. No firewall or port setup needed.

5. Invite users
   Send users invitation emails. They can then install Linkus on their devices and log in using their extension.

Licensing and Pricing

• LCS Pro is sold per PBX per year.

• Pricing varies by region and provider.

• You can check official pricing on Yeastar’s website or through a local reseller.

• There’s a 30‑day free trial to test it out.

Pros and Cons

Pros

• Firstly, No technical setup.

• Secondly, Secure remote access.

• Thirdly, Works well with mobile apps and desktop softphones.

• Lastly, Lets you connect remote SIP devices or branch PBXs easily.

Cons

• Firstly, Requires subscription cost.

• Secondly, Needs your PBX firmware to be updated.

• Lastly, Doesn’t support video calling.

Real‑World Feedback

• Many find LCS Pro easier to use than full VPNs.

• Some users report that standard Linkus (without LCS) can fail when mobile apps are killed—LCS Pro fixes this.

• ISP port‑blocking or unstable mobile connections may still affect Linkus, so LCS Pro helps but doesn’t solve all network issues.

Summary

Linkus Cloud Service Pro is ideal if you want:

• Firstly, Remote Linkus access without firewall or port setup

• Secondly, A dedicated domain for your PBX

• Thirdly, Support for remote phones and branch connections

• Lastly, Strong security and encrypted connections

It’s easy to set up, keeps your users up and running remotely, and simplifies your voice setup