It’s worth mentioning that additional factors to consider when investing in a small business phone system include: how many telephone extensions will you need, what user features are important, what wiring infrastructure is currently in place, and of course budget. Don’t worry, I’ll be writing a follow up article to this discussing these other factors in detail. Back to the types of phone systems.
The 4 Types of Phone Systems Available
1. KSU-Less
Relies on landline (phone wire) technology to function and is the most basic small business telephone system out there. Features reside directly on individual phones. For the most part, KSU-Less systems are losing out to VoIP systems.
Advantages
- Low cost
- More features than single line phones
Disadvantages
- Limited features
- You’ll need someone with expertise working on these systems since you install and maintain the systems in-house
Relies on landline technology to function and uses a central control device referred to as the key system unit (KSU) to provide features which aren't available with ordinary phones.
Advantages
- Have several features that a PBX system has
- Can cost less than a PBX system but this is changing
Disadvantages
- You may find desired features are lacking compared to a PBX system
- Since these need to be professionally installed, they can get pricey when compared with newer IP-PBX systems
PBX systems can use both landline and VoIP (called IP-PBX) technology offering you greater flexibility and features compared to other systems. Similar to key systems, a central control device (box) resides within the business.
Advantages
- Almost limitless features
- Highly scalable - especially if control box supports IP functionality
Disadvantages
- Installation and configuration costs can be high although some IP-PBX systems are extremely affordable for a small biz
- Maintenance is required and can only be done by a professional
VoIP phone systems treat audio as data, turning your words into tiny packets of information that are sent over data networks (the internet). As they arrive at the other end of the call, the data is turned back into audio.
Advantages
- Minimal installation fees - unless you’re looking at hosted VoIP (this will be discussed in a different article)
- Eliminate long distance charges
Disadvantages
- Maintaining call quality - high quality sound demands quite a lot of bandwidth, so voice quality could become a challenge if you reach your bandwidth capacity.
- Outages - unlike digital phones which get their power from phone lines, VoIP phones are dependent on a power source. If you lose power, you lose your phone system. Having a mix between digital and VoIP is preferred although may be cost prohibitive.
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ReplyDeleteThis is a great and easy to understand list, and most business phone system installations use each either of these phone systems. For me I prefer to the voip for free long distance calls but for business - the PBX.
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