POTS, PSTS, or VoIP: Which among the three should you go for?

If you have been a business owner for a while. you’ve probably heard of the existing advancements in communications that you can use. And with this development, you’re faced with a crucial question…

What should you do about the communication system used for your business? Should you stick with the old or evolve and try something new?

At this point, we’re sure you are familiar with calling people using the internet. But it’s not limited to personal calls such as via sms for verification WhatsApp, Telegram, Facebook or Gmail. The fact is you can also apply this to your business.

One of the more popular types of technology used by businesses is VoIP offered by companies that are thriving right now such as Telnum.net because of the increasing demand.

But just because everyone is doing it, doesn’t mean you should too, right? So to help you decide, we’ll compare this against its older and non-internet based counterparts: POTS and PSTN. We’ll cover each of their advantages and disadvantages, then proceed to factors you should consider in getting one.

Let’s start with the type you’re most likely more familiar with…

What you should know about POTS and PSTN

Because calling using the internet is gaining traction, these terms are now normally used in place of each other. Both technologies use copper wire to receive and start calls. The biggest differentiator right now may be copper wires vs the cloud, but PSTN and POTS are not the same.

POTS stands for Plain Old Telephone Service. And you know why that’s how it’s called? Because that’s what it offers. Remember those landlines that you have in your house growing up? That’s what’s meant with plain old – copper wires are absolutely necessary for this to work.

Meanwhile, PSTN or Public Switched Telephone Network is an upgrade from POTS. While POTS can use copper wires exclusively, PSTN is able to take advantage of other technologies like fiber and ISDN.


  • It’s easier to locate you if there’s an emergency.
  • You don’t need the internet for this to work.
  • You most likely have invested in this already.


  • International calls are much more expensive.
  • It doesn’t give you access to useful features that can improve communication.
  • You have to maintain a lot of hardware just to ensure that you’re always up and running.
  • You can’t take calls wherever you are.

What you should know about VoIP

If you’re having a hard time grasping how calling via the internet would work in a business setting, just think of it making calls the normal way. Only that you don’t use copper wires. You use the internet. That’s it, actually.

VoIP comes with the following advantages and disadvantages:

  • It’s so much cheaper than the old technology
  • It’s easier to scale up or down.
  • You can take it wherever you go.
  • It gives you lots of features like phone analytics.
  • You need a strong internet connection to maintain call quality.

You may use either of these two types:

Fixed VoIP

Using this means having to present proof that you have an address from that specific place to get a number there.


  • It’s harder to fake the number because of the supplemental requirements you have to submit.
  • It lends your business more credibility.


  • It’s relatively more expensive than its non-fixed counterpart.
  • Your application will take a little longer to process.

Non-fixed VoIP

This option doesn’t consider your actual location. You can purchase a number with any area code available.


  • It’s terrific if you don’t have a physical office in a certain place.
  • It has a quicker processing time because there’s no need to verify your submitted requirements.


  • You’re more vulnerable to scammers.

Which among the three should you go for? Ask yourself these questions:

How much are you willing to spend?

One of the most popular advantages of VoIP over PSTN is the cost. From a business perspective, you’ll want to keep costs down without sacrificing the quality of the service. And having VoIP, that’s exactly what you’ll get.

Do I make overseas calls regularly?

Because if you do, that’s another reason to try VoIP. Phone companies charge huge sums for you to make an overseas call. With the minutes adding up over the month, your bill can easily balloon.

Do I want the simplicity of unifying different communication modes?

VoIP isn’t just for calling phones. It can also integrate other features like video conferencing and instant messaging as part of the package.

Do I want additional features for free?

Phone companies give you the basic – nothing more, nothing less. But you don’t have to settle for that. You can get additional features that are probably not included in your phone plan for free.

Definitely, VoIP is the obvious choice unless you have an unreliable internet connection. Going VoIP offers you so much more for less than the cost you’re paying right now. Considering its benefits over its outdated counterparts, the only thing left to ask is, when are you making the switch?

POTS, PSTS, or VoIP: Which among the three should you go for? 3
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