5 Types Of Business Phone Systems

5 Types Of Business Phone Systems

Every business enterprise is tasked with the responsibility of making and receiving phone calls daily. It seems like an effortless task to operate internal and external calls with local organizations. However, not all phone systems have features that can successfully manage international or foreign calls.

Here, in this article, we’ll discuss 5 different types of business phone systems that can fit into different roles in every business organization.


The key system unit system basically works for businesses with limited scope and capacity. It has a feature that can only accommodate a limited number of phone lines embodied in it. It is regarded as the most primary phone system because it is very effortless to use and is quite corresponding to a home telephone system, with a perfect structure for small businesses. However, as simple as it seems, it is not portable and flexible, plus a limited scope for making phone calls. Plus it always disconnects from the main source if you attempt to transport it.


The KSU-less, a variation of the KSU, has similar features as the latter. However, it excels more in portability and flexibility. It has no central operating unit; the phones are wireless and they can be effortlessly unplugged. Hence, it is transportable and can still maintain effective communication. However, it can only be operated by not fewer than 10 operators; a perfect offering for small-scale businesses that have no intention to expand. It cannot be sold and used generally unless you perform your own installation.


This phone system is more progressive than the KSU and the KSU-less systems, basically because it has more peculiarities and can accommodate about 40 or more employees for its services. The PBX offers accommodation for modems and fax machines to be integrated. It also has some automatic call operations, like auto-dialing, phone conference, and a ring-back.

It is wide open for businesses with intentions to expand, and it remains operational even in cases of power interruption.


In terms of flexibility, the VoIP system is the most refined phone system available for businesses. It allows for an international interaction between an operator and a foreign customer,  generally because it accommodates operations from the internet and also a computer system, which makes it easier for international interaction. And it is way more portable than other phone systems.

One more thing, unlike other phone systems, its installation is not too difficult.

But… it is costly; quite justifiable for a contemporary phone system as the VoIP.


Multi-line phone systems are common in organizations that basically interact physically with their customers, such as restaurants and business organizations. As suitable as it is for businesses of all shapes and sizes, it offers a stream of peculiarities to manage your business. Just like the PBX, you have access to an automatic call-back, voicemail, speed dial, an automated attendant and shows the caller ID.

About Ambika Taylor

Myself Ambika Taylor. I am admin of https://hammburg.com/. For any business query, you can contact me at ambikataylors@gmail.com