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Four Types of Telephone Systems for Businesses

One of the first things that you need to do before opening your doors is to get a business telephone system. You need a way for customers to contact you and for you to call in orders to suppliers. Thanks to technology, here are four types of business telephone systems to choose from.


If you are opening a small business and you have a limited budget, then a KSU-Less system may be best for your needs. KSU stands for Key System Unit; however, this system has fewer features than a regular KSU telephone system.

To operate, they don’t require a central control unit as a traditional or KSU system does and they don’t need to be hardwired into the building’s infrastructure. Their technology exists within each telephone so the system is portable and flexible. It only offers two to four lines so it is for businesses with limited telephone needs.

KSU Systems

Although it offers limited telephone services, this system is made for small to medium-sized businesses on a budget. Most systems offer six trunks, or phone lines, each of which can support up to 10 extensions. This means that you could have up to 60 unique telephone numbers that connect to your business.

While they offer all the basic telephone features such as voicemail, intercom, and auto attendant, the newer models of the system have advanced features. They may offer as many features as PBX systems and some hybrid systems can operate as a key or PBX system.

PBX Systems

Many large companies have PBX, or Private Branch Exchange, systems that offer hundreds of phone lines with advanced features. Modern PBX systems offer both analogue or digital ports so you could have a digital fax machine, an analogue intercom system, or digital phones hooked up to a PBX box.

Similar to KSU systems, a PBX requires office space and professional installation. Maintenance needs to be done on site. However, they can handle all the phone needs that your business has if you’re willing to pay for them.

VoIP Systems

Voice over Internet Protocol telephone systems are different than traditional systems such as those above because they operate over the Internet. They do not require being hardwired into the building and the systems are portable. So, if the business moves to another location, you can get the business phone services up and running right away.

To use VoIP systems, you can plug traditional phones into an adapter, order VoIP telephones, or use computers with headsets to speak to people. They offer a wide array of features at no extra charge, including the ability to transfer calls to mobile phones, and they cost less to operate than traditional systems. Businesses can purchase a VoIP system or hire a provider that hosts the system and takes care of its maintenance.

To decide which type of telephone system works best for your business, consider your current and future needs and your budget. While you may be a small company now, you should consider getting a system that can expand as your business does.

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