Because it was first presented, IP telephone was promptly grabbed as an affordable and future-proof alternative to PSTN. By 2021, the Hosting Tribunal reported that VoIP users reached a 3 billion mark– a substantial landmark, in comparison to simple 2 million businesses left connected to a landline.

With more firms yearning for worker movement and versatility, there are no indications of this fad altering or even decreasing. Yet is it time to formally call PSTN gives up?

What is PSTN?

PSTN (Public Switched Telephone Network) is a conventional circuit-switched telephone network. It’s best defined by its other acronym POTS, or a Level Old Telephone System. Since the late 1800’s, it has offered framework and services for public telecommunication and brought forward landlines as a go-to alternative for individual and also business communication.

What is VoIP?

In the last three decades, VoIP promptly advanced and also confirmed its dependability and also versatility in the telco market. Voice over Web Procedure counts only on the net connection in order to make as well as receive phone calls. The audio data is sent as pressed packets over the network and these are later decoded and also decompressed on the getting end.

Key Differences In Between PSTN and also VoIP

While enabling effective long distance communication is the best goal for both networks, it also attracts the checklist of their similarities to an end. When it comes down to it, PSTN as well as VoIP take 2 completely different courses to achieve this aim. For instance:

Modern technology & Equipment
PSTN is a circuit-switched network in between 2 points. It’s composed of copper cords that are utilized to transfer the analogue voice information. It’s greatly dependent on equipment such as telephone circuitry, switching facilities, cable systems, amongst others, to make certain premium quality audio transmission.

On the other hand, VoIP is a packet-switched network that sends out real-time digital voice signals from the sender to receiver over Wi-Fi or Ethernet link. The customers have the adaptability to make calls from their existing landline making use of an adapter, a specialized VoIP deskphone, or by downloading a softphone on their cellphones, tablets or computer systems.

Telephone calls over typical landlines are charged according to 2 variables: range as well as time. For a regular worldwide customer, this implies large and also uncertain month-to-month expenses, as well as trouble estimating their telco spending plan.

When it comes to VoIP, nevertheless, your regular monthly typical registration totally ditches the aspect of surprise. It systematizes monthly or yearly rate by the variety of individuals and also functions you desire to execute and can be entirely flexible to satisfy your business demands.

Plus, unlike PSTN, VoIP doesn’t require heavy facilities investing on equipment, electrical wiring and private phone installations. IP telephony conveniently repurposes existing devices and internet link to fit its function calling for no additional first financial investment. It’s approximated that businesses can conserve up to 80% by abandoning typical circuit switched networks.

Features of PSTN

Because PSTN is just efficient in making and also getting telephone calls, IP telephony is the apparent winner when we take into consideration the features available. VoIP isn’t about only making a call, but taking advantage of every call. It provides a limitless range of virtual features consisting of:

  • Voicemail
  • Call transfer
  • Call recording
  • Call surveillance
  • Call queues
  • Call directing
  • Availability status, etc.

Some systems can also supply preferred AI powered devices, such as the electronic receptionist. It aids assist the customers in a timely as well as reliable manner making use of automated commands, queueing as well as on hold music. With more advanced software applications, auto-attendants can also collect important customer details to assist representatives immediately tailor their technique to the demands of the consumer.


In spite of being outplayed in regards to costs and functions, it still establishes the standards for:

Safety and security: VoIP’s dependence online to transfer data is its greatest strength and also its greatest weak point. As the Internet makes the established susceptible to malicious cyber assaults, transaction with delicate data like standard landlines.

Top quality: It isn’t so much that VoIP can not match the top quality of the landline phone call, yet it is regularly lacking the exact same uniformity. With PSTN, the signals normally travel much faster making use of copper electrical wiring, and also aren’t subject to low data transfer.

Use: While services anticipate reaping the benefits of IP telephone– modification is never ever easy. Landlines have long end up being the easy to use, comfort zone service for lots of employees and supervisors.

Adaptability: Take a pick at the gadgets, carriers, SIP trunks, numbers, country codes you wish to make use of. IP telephony gives an unbelievable degree of freedom as well as control over the interaction arrangement.
Flexibility: No specialized infrastructure additionally suggests that the system can be adopted from anywhere, giving staff members all the essential devices to maintain their performance.
Scalability: In simply one click, you can upgrade or downgrade your subscription to match your existing service needs and also junk the need for extensive (as well as pricey) equipment replacement.
Maintenance: Majority of VoIP upkeep can be done through automatic software updates that are not just free, yet additionally just take a couple of mins to mount.


VoIP’s significant contribution and also advancement in telecoms can’t be disregarded. It is currently an evident option for numerous, thanks to its convenience as well as versatility alone. Yet, we would not be too quick to pronounce PSTN dead.

POTS supplies an unequaled level of reliability as well as consistency till today. It operates as a backbone and also a safeguard for lots of companies that are still finding out exactly how to make the most of IP telephone. What we are experiencing, however, is the death of PSTN as we know it– a single way of connecting and an only system to depend on.