Are calls on VoIP secure?

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. […]

What is QoS (Quality of Service), do I need it?

Quality of Service (QoS) is a service that allows you to prioritize your internet to your VoIP devices. Most users won’t need to meddle with it, For example, other employees may browse the internet, stream videos, and listen to music, or some software will do extensive file sync. All these […]

Do I have to maintain my Yeastar Cloud PBX phone system?

No, because your business phone system is hosted in the cloud, we perform all the maintenance for you. We will do the necessary firmware update, database backup, logs audit, firewall harden, etc. All you need to focus on is maintaining a fast and internet connection, download Linkus UC or plug […]

Can I set up VoIP phone service on my own, or do I need a tech?

You don’t need a technician to install your business phone system in most cases. For most business users, they can set up their VoIP phone system on their own. No technicians or installers to worry about. Yeastar provides a plug-and-play functionality and makes it very easy to enjoy using a cloud-based phone […]

Does my computer need to be online for me to make a call?

If you make calls with Linkus UC app on your computer, then yes. Otherwise, your computer does not need to be connected. You can complete calls as long as you have internet access and a VoIP-enabled phone or smartphone. Alternatively, you can forward calls to any other phone you have, and […]

What is a virtual number?

A virtual number is a telephone number that uses Internet technology to place calls (VoIP). This connection is made via an internet SIP Trunk which, unlike the traditional PSTN or ISDN lines, is neither bound to a fixed location nor associated with a physical telephone line. Using a virtual number […]