What is VoIP?

VoIP technology enables you to make and receive telephone calls over a broadband Internet connection instead of over a traditional phone line, such as PSTN Analog lines, ISDN digital lines.

Will I lose any business features from landlines if I switch to VoIP?

No, your number remains. You are only gaining more features for your phone system.

• Reduced local and long-distance call charges
• One network to manage for both voice and data, instead of two
• Reduced travel costs, wherever you are, just dial out as if you are at your office
• Easily make adds, moves, and changes to the phone system as needed
• Employees have more ways to stay connected and customers can reach them more easily
• Take all of your phone system’s features with you for use at home, at the office, or on the road

And many more…

In order to keep your numbers, there are two options:

• Port your number to a SIP trunk provider.
• Continue to use your landlines but it’s required to install a Yeastar VoIP gateway in order to bridge your landline to our Cloud PBX.

How is VoIP Different from Unified Communications?

VoIP refers to a basic Internet-based telephony system. Unified communication is more advanced. Among unified communication’s many advantages are sophisticated call center features; conferencing that combines voice, data, video and desktop sharing; and presence—the ability to instantly determine the availability of others within your company.

How is the call quality of a VoIP phone?

The call quality of cloud communications systems depends on the speed and reliability of your internet.

You will hear a vast improvement in call quality compared to traditional landlines. VoIP calls achieve this through HD Voice technology.

However, you need to make sure you have sufficient bandwidth to make high-quality VoIP calls. If you feel as if the quality of your calls is lacking, you can adjust your quality of service settings on your router. Most routers allow you to prioritize voice calls on your data network, which prevents other applications from affecting the call quality. If you’re not sure whether your router has this capability, contact your Internet Service Provider for more information.

How much bandwidth is needed for VoIP calls?

The number of HD Voice calls you can handle will depend on how fast your internet download and upload speed is. Usually, you can estimate based on 100 kbps per call.

Do I need an existing phone number?

No, you do not need an existing phone number to use VoIP. Simply choose a SIP Trunk provider and you can purchase any amount of number from almost any country. You can select any VoIP phone number you want, including ones in a different area code.

Do I need to have an existing VoIP phone?

No, you do not need to have an existing VoIP phone. Since VoIP phones adhere to approved internet standards, you can bring your own, buy one from us, or from any hardware retailers.

You can skip the desk phone entirely and use the Linkus UC App on your desktop, laptop, or smartphone to complete calls over VoIP.

Is internet service included with your VoIP phone service?

No, we do not provide internet service as a part of our plans.

Our data center has a fast connection to all major Singapore ISPs, you would have no problems with speed or reliability.

A call would require 100kbps bandwidth (or 0.1 Mbps), so if you would expect 100 users to do calls at the same time, you must allocate 0.1 Mbps x 100 = 10Mbps bandwidth to be assigned for VoIP traffic.

If I lose power, will I still be able to make phone calls with VoIP?

In most cases, you will not be able to connect calls if there’s a power outage. Our Yeastar Cloud PBX works over the internet. During a power outage, your router will not be able to function, which means there will be no internet access.

The first exception to this is if you have a backup power source that could power the router (and therefore maintain your internet connection). If you use Power over Ethernet (PoE), that may need backup power as well.

The second exception to this is if you have 4G/5G connection on your laptop or Mobile phone, simply switch to 4G/5G and Linkus APP will automatically connect again.

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 system. Once you’ve plugged your phone devices in, you can manage its settings online from your browser.

If you have special requirements that require further assistance, we’re available to help you along every step of the way.

If you want a fast setup, simply describe your requirement, pay a setup fee, and let us handle it for you. We will complete the setup and deliver it to you within 3 days upon receiving your detailed instruction of call flow.

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. 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.

Will my VoIP phones continue to work even if I move offices?

Yes, as long as you have fast and reliable internet at your new location, your VoIP phones will work.

Since your new phone system operates in the cloud, it’s not tethered to a physical location.

How fast does my mobile internet need to be to handle VoIP calls on my smartphone?

With a strong wireless 4G LTE (Or 5G in the near future) connection, your smartphone can handle calls with HD call quality. It’s less about the speed, but the variance in network latency—often called jitter.

In most cases, a 3G signal is sufficient for a satisfactory VoIP call. In cases of weak cellular signal, you may opt for a stable Wi-Fi connection instead.

Can the VoIP function over a wireless internet connection?

Yes, your VoIP service can work well over wireless internet connections. However, you will need to ensure that you are getting a strong Wi-Fi signal.

Wi-Fi itself tends to be susceptible to interference resulting in a momentary drop of a signal. You can use Wi-Fi successfully, but you need a strong signal.