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What is VoIP?

October 2, 2018

12:51 pm

What is VoIP?


VoIP stands for Voice over Internet Protocol, which basically means that you can make phone calls over the web, instead of via a traditional phone line. There are plenty of advantages to working this way, but the key one for most business users is the cost, which can be much cheaper than using a standard telephone system.

How does VoIP work?


When you use a VoIP phone system, your voice is digitized into packets of information that the internet can route to the recipient. Your recipient could be another VoIP user or a traditional phone user, in which case your VoIP service providers’ interface will route the call to the public telephone network. This allows VoIP users to contact standard and mobile telephone users seamlessly.

The diagram below shows how VoIP works, and the ways in which it can communicate with your office infrastructure.

Diagram explaining how VoIP works

There are many different methods used to achieve this, however. For example, the system might use a ‘codec’ – a way of encoding audio or video signals – which is optimized for narrow bandwidths, for higher security, or for near-flawless audio clarity. Some systems can even choose which codec to use based on network performance and other factors.

Some ‘first generation’ VoIP solutions are modeled after the older phone network in order to offer fully compatible services. Other, ‘second generation’ VoIP providers like Skype provide free or nearly free traffic over a closed network of registered users. Still other, ‘third generation’ providers use a ‘federated VoIP’ system to allow dynamic connectivity between internet domains.

In terms of style and design a VoIP phone is made up up many of the same components as a typical desk phone. Advanced functions which will be explored in more detail below may include large touch screens and additional Ethernet ports.

Examples of equipment used in a VoIP phone system:

Different types of VoIP phones


Once you have all of the necessary components in place to build your VoIP system, it is worth looking at the different types of phones available for businesses. There are four main types of VoIP phone; desk, wireless, soft and conferencing.

VoIP Desk Phones– The “regular” VoIP phone looks like a traditional landline handset but uses an internet connection to send and receive audio and other information. Compared to traditional desk phone handsets, VoIP phones can have greatly improved features, such as automatic call forwarding to mobile, and voice-to-email transcription.

Wireless – A VoIP phone with built in Wi-Fi or a DECT transceiver which connects to a base station or access point. Cordless phones allows users to move freely around their workspace while on a call.

Softphones A software application which is installed onto a computer and equips the device with the ability to make and receive calls, and “become a phone” like any other handset. Softphones are particularly useful for remote workers and even call centers because they are relatively cheap to set up and run.

Conferencing A conference phone will usually function in the same way as an analogue telephone. However an IP conferencing phone will be used in a large business or conferencing facility where calls take place with multiple participants

With so many options available, VoIP offers a workable and practical solution for many businesses and contact centers who need a fast, reliable and high quality communications system.

See how much your business could save on a VoIP phone system
with our free price comparison tool.

VoIP phone benefits- why get VoIP?

Cost Savings

If you are looking for a phone system for your business you no doubt already know that finding the right system at the right price can be a difficult task. Phone systems can be a costly investment but one benefit of VoIP phone systems is that they allow you to save some of this expense by eliminating setup and installation fees as well as preventing the need for any on premise server equipment and maintenance.

Sound Quality

Gone are the days when VoIP technology could not match the voice clarity of traditional phone networks. Today you can make calls anywhere in the world and no longer be able to notice any difference at all with a significant improvement in the call quality and a decrease in the number of dropped calls meaning no more strained business relations and more satisfied customers.

Flexibility

The virtual nature of VoIP mean you no longer have to deal with the hassle of registering and setting up country specific phone numbers, instead you can ensure you can be reached on the same business number wherever you are. This is vitally important for any business owners who are required to travel for meetings and other appointments and may be worried about picking up calls on the move.

Advanced Functionality

As with any organization, even with a team smaller in size the output and productivity levels must still remain high if an organization is to grow and hit KPIs. This means it is even more important that the phone system you choose has features that help your staff in as many ways as possible and additional features of VoIP phones such as unified video and voice functionality and customizable touch-screen displays can be vitally important.

Key Features of VoIP Office Phones


As well as the convenience and cost-saving benefits of converging your telephone and Internet systems onto one network, VoIP also brings access to the kind of advanced phone service features that until a few years ago only large corporations could have afforded with a traditional telephone system.

Business VoIP systems provide a great degree of customization, allowing you to piece together just the features you want or need for your particular requirements – without having to pay for bundled features that you aren’t going to use.

 Advanced voicemail / Click to call

The difference between the old-school answering machine and VoIP-enhanced voicemail perfectly illustrates how VoIP systems take conventional telephony concepts and bring a whole new level of flexibility and efficiency to their implementation. With VoIP voicemail, you’re never more than a click away from calling someone back directly and easily – but you might also prefer to get each voicemail emailed to you as an audio file attachment, or automatically transcribed and delivered to you via text message or email. You also have the option of tracking missed calls from your email, and calling them back directly from within your email interface: a feature known as ‘click to call’. You can even incorporate fax into the equation, sending and receiving ‘virtual faxes’ as PDFs.

 Online dashboard

From this software interface you have immediate access and control over every aspect of your business phone system, such as voicemail, call logs, contacts databases, programming greetings and messages, setting up conference calls and directing traffic. From here those employees set up as administrators can also manage billing and further customization of the phone system as needed.

 Find me/follow me

With VoIP you can assign each employee or member of the team a single ‘virtual extension’ number rather than everyone needing a separate number for each location. Calls to a virtual extension can then be set to ring all of your phones simultaneously, or in order, and also how to handle a missed call. You can choose if a call should go to voicemail or be passed to another extension. The virtual extension also works on outgoing calls, so whichever phone device you’re actually calling from or where you are, the receiving caller ID will show your number and you can present a consistent front to clients, suppliers and customers.

 Auto Attendant

Also sometimes called a digital or virtual receptionist, an auto-attendant is a voice menu system that greets and guides callers through numbered options so that they can be transferred to the relevant departments or extensions within the company.

 Interactive Voice Response (IVR)

Callers are greeted by an automated voice which presents them with a number of options – they can then interact with the voice, selecting their preferred option (for example, which department they would like to speak to) using the keypad on their phone. IVR systems can handle high volumes of incoming calls, and can reduce costs and improve customer experiences by providing access to information and services 24 hours a day without the need for human staffing around the clock.

 Automatic Call Distribution (ACD)

Related to the hunt group or line hunt feature in traditional PBX telephony, ACD is popular with businesses receiving high volumes of incoming calls. The ACD system distributes incoming calls amongst a specific group of phone terminals or operators based on particular criteria such as the customers selection, their phone number, the selected incoming line to the system, or the time of day the call was processed.

 Barge-In

Allows a user to enter a call  between two other extensions or between an internal extension and an outside line, either creating a three-way call or simply monitoring (listening in on) active calls. The feature can be set up to sound a warning tone to the other users when a barge-in is about to take place.

 Call Me Now

This feature allows customers to call your business directly from a form or contact page of your company website, making customer communications fast and easy.

 Call Recording

Users have the option to record, playback, download and delete any incoming or outgoing calls. This feature is often implemented on an individual extension basis, so you make this a system-wide feature or you can choose which phones or extension users have access to the record functions.

 Day/Night Mode

Allows users to set different sets of rules for how their business phone system functions or routes calls depending on whether incoming calls are received during business hours (day) or after hours when no-one is in the around (night).  Night mode typically serves as an ‘autopilot’ mode until the day mode is restored the following morning.

 Conference Bridge

This feature enables users to set up virtual meeting rooms, which can then be joined by participants on their own devices. Most service plans will allow access for 15-25 participants as standard.

 Video Conferencing

Going even further than conference calling, video conference calling works the same way, but also presents all parties with a picture (live video) of the other callers.

FAQ


How much does VoIP cost?

VoIP costs can vary considerably depending on the size of your business and the type of service you opt for, but the entry level price is by no means prohibitive. This is especially true if you opt for a totally cloud based system, with no need for dedicated onsite hardware, doing away with extra costs and maintenance charges. For these, you could be looking at less than $20 per employee a month, depending on the provider. Costs for a locally hosted PBX system will be considerably more.

VoIP vs landline: which is better?

While a traditional landline may be seen as dependable and robust, it’s a hugely outdated technology, restricted by physical limitations and a lack of recent innovation. It can also be costly and inflexible for a business to deal with. VoIP systems on the other hand are highly versatile and comparatively inexpensive. If you run a modern business, you’ll want a modern telephone system, and that’s VoIP. 

View our VoIP vs Landline phones guide.

What’s the difference between VoIP vs Cloud telephony vs Hosted PBX phones vs Hybrid PBX?

Getting your head around VoIP based systems can be confusing, given the numerous terms that are used to refer to it.

VoIP is the term given to making telephone calls over the internet instead of via a traditional phone system. The other terms listed above simply refer to the different ways this kind of internet telephony can be set up.

Hosted, or Cloud Based PBX systems are virtual telephone systems that are hosted off site by a third party. Businesses pay a subscription, usually per employee, to use these systems.

Companies that already have an onsite PBX, perhaps from an existing or previous traditional phone system, can opt for a hybrid solution. This means that elements of the cloud telephone system can be accessed via the company’s own PBX system, with some integration.

What happens if the internet goes down?

If your office internet connection is disrupted, your office telephone system will be too, as VoIP relies solely on being online. (This is why one of the best precautions you can take when opting for a VoIP system is finding a reliable internet provider to complement it.)

On the other hand, while your office phones may be down, you’ll still be able to access your VoIP line via a mobile device such as a smartphone or laptop, and leading companies will even set calls up to automatically reroute to such devices and numbers, in the case of an office connection drop.

Is VoIP scalable?

As a business owner, you’re constantly looking for ways to grow your business, and you don’t want to be hamstrung by your telephone system. This is one of the key selling points of VoIP, as it allows you to quickly and cheaply expand your phone system at the same rate as your company.

Can I use my existing telephones with VoIP?

This will depend on the telephone system you currently have, but if it’s not compatible, there are plenty of dedicated VoIP phones available. It’s also worth remembering that one of the positives of VoIP is that you don’t even need a traditional phone. You can use the system in conjunction with a cell phone, or even make calls through your computer.

Get VoIP today

Although landline phones tend to be more reliable and have better sound quality, VoIP is the clear overall winner based on every other factor. A VoIP phone system can help modernise the way your business communicates and will grow at the same rate as your company. VoIP will bring your business into the 21st century. If you’re still not convinced, compare prices today to see how much your business could save on a new or upgraded phone system.

See how much your business could save on a new phone system
with our free price comparison tool.

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Jack is a senior writer at Tech.co with over a decade's experience researching and writing about consumer technology, from security and privacy to product reviews and tech news.

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