
The Telephone is a telecommunications device designed to transmit speech by means of electric signals. Generally attributed to the inventor, Alexander Graham Bell, the first was built in Boston, Massachusetts in 1876.
The history of additional inventions and improvements include the carbon
microphone (later replaced by the electret microphone now used in almost all
telephone transmitters), the manual switchboard, the rotary dial, the
automatic telephone exchange, the computerized telephone exchange, Touch
Tone(R) dialing (DTMF), the digitization of sound using different coding
techniques including pulse code modulation or PCM (which is commonly used
for .WAV files and on compact disks). Newer systems include ISDN, DSL, cell
phone systems, digital cell phone systems, and the third generation cell
phone systems that promise to allow high-speed packet data transfer.
Business Phone Systems Buyer's Guide
Table of Contents
• Phone System Introduction
• Types of Phone Systems
• Sizing a Phone System
• Basic Telephone System Features
• CTI and Advanced Features
• Office Phones Dealers
• Office Telephones Pricing
• Buying Tips
A business phone system is one of the most important purchases your office
can make. The telephone is often the easiest way to reach your customers,
clients, and partners. It should also be the easiest way for them to reach
you. You do not want your important business calls into your office to be
routed incorrectly, disconnected, or faced with a bewildering array of
automated options.
There are many factors to consider when buying a business telephone system.
For example, you need to get enough capacity for your current needs while
planning for growth. A small business phone system will have fewer bells and
whistles, but should still provide the core set of features you need.
You will want to ensure compatibility with other equipment you already own
or may need such as voicemail, messaging on-hold, headsets, or conferencing
equipment. And you will need to choose a phone system that supports all the
features your business requires.
Managing all of those factors while keeping costs down can be a huge
challenge, but BuyerZone can help. This Buyer's Guide will help you
understand the types of decisions you need to make, how to choose a business
telephone system, and how to find a phone system dealer.
Types of Commercial Phone Systems
Phone Systems Buyer's Guide
There are three major types of commercial phone systems on the market today:
key systems, Private Branch Exchange (PBX) systems, and KSU-less phones. The
type of system you choose will depend on how many stations (extensions) you
need and what features you require.
A fourth type of phone system uses Voice over IP (VoIP) technology to route
your internal calls over data networks, instead of traditional phone lines.
For some businesses, VoIP systems can provide significant cost savings and
other benefits.
Table of Contents
* Phone System Intro
* Types of Phone Systems
* Sizing a Phone System
* Basic Telephone System Features
* CTI & Advanced Features
* Office Phones Dealers
* Office Telephones Pricing
* Buying Tips
* Find a dealer
Read more in our VoIP Phone Systems Buyer's Guide.
If your company has more than 40 employees, or if you demand advanced
functionality from your phones, PBX systems are often the best solution. You
may know PBX systems as the massive telecom cabinets used by huge companies.
While that still can be the case for large installations, the technology has
progressed to the point where a powerful PBX for a small company can sit
unobtrusively on a desk.
Most come standard with all the features you might want. In addition, they
are totally programmable, so they can support the most complex
implementations. You will likely pay a premium for this flexibility, but in
many cases the price difference between PBX systems and less adaptable
solutions will be smaller than you might expect.
In the 5 to 40 employee range, key systems are more typical. This type of
phone system uses a central control device called the key system unit (KSU)
to provide features that are not available with ordinary phones. For
example, a central unit typically allows users to make calls to another
in-office extension, and prevents other users from accidentally picking up a
line that is being used. Modern key systems also come standard with most
features a business would expect - but in some cases they are less
customizable.
While there are technical differences between key and PBX systems, the
distinctions to a user have become relatively blurred. Many key systems
include features that were once available only on PBXs, and some systems
operate internally as either a key or a PBX depending on the software that
is installed. The term "hybrid" is often used to describe systems that
resemble both key and PBX systems.
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